Methanol

Athanor · official

CH₄O · 32.042 g/mol

Also called MeOH, methyl alcohol, wood alcohol, carbinol

Solvents

Open in Athanor

Drawn from its SMILES with RDKit

DangerHighly Flammable liquid and vapor · Toxic if swallowed · Toxic in contact with skin · Toxic if inhaled

Names and identifiers

IUPAC name: methanol
Synonyms: MeOH, methyl alcohol, wood alcohol
+ 35 more
carbinol, Methylol, Wood naphtha, Methyl hydroxide, Monohydroxymethane, Methylalkohol, Alcool methylique, Methyl hydrate, Alcohol, methyl, Metanolo, Alcool metilico, Metylowy alkohol, CH3OH, Rcra waste number U154, Metanol, Alcohol,methyl, DTXSID2021731, NSC-85232, Y4S76JWI15, CHEBI:17790, DTXCID801731, NSC85232, Alcohol, Wood, Methoxide, Sodium, RefChem:100, 200-659-6, Hydroxymethane, Freers Elm Arrester, Surflo-B17, Wilbur-Ellis Smut-Guard, Metanol [Spanish], Metanolo [Italian], Coat-B1400, Caswell No. 552, Methylalkohol [German]
Molecular formula: CH₄O
Empirical formula: CH₄O
Molecular weight: 32.042 g/mol
Exact mass: 32.02621
CAS number: 67-56-1
PubChem CID: 887
Canonical SMILES: CO
Isomeric SMILES: CO
InChI: InChI=1S/CH4O/c1-2/h2H,1H3
InChIKey: OKKJLVBELUTLKV-UHFFFAOYSA-N
Molfile

Names, InChI and the identifiers from PubChem, retrieved 2026-10-14.

Physical properties

TemperaturePressureDensity

Appearance: Colorless liquid[6]
9 values
From Hazardous Substances Data Bank (HSDB), the most authoritative source here.
Value As written Source
– Methanol appears as a colorless fairly volatile liquid with a faintly sweet pungent odor like that of ethyl alcohol. Completely mixes with water. The vapors are slightly heavier than air and may travel some distance to a source of ignition and flash back. Any accumulation of vapors in confined spaces, such as buildings or sewers, may explode if ignited. Used to make chemicals, to remove water from automotive and aviation fuels, as a solvent for paints and plastics, and as an ingredient in a wide variety of products. [1] CAMEO Chemicals
– Methanol, tallow alkyl iminobisethanol appears as a yellow-colored liquid with an "alcohol" odor. Less dense than water. Vapors heavier than air. Corrosive. Contact may severely irritate skin, eyes and mucous membranes. May be toxic by ingestion, inhalation and skin absorption. Used to make other chemicals. [1] CAMEO Chemicals
– Liquid; CBI [2] EPA Chemical Data Reporting (CDR)
– COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. [3] ILO-WHO International Chemical Safety Cards (ICSCs)
– Colorless liquid with a characteristic pungent odor. [4] Occupational Safety and Health Administration (OSHA)
– Colorless liquid with a characteristic pungent odor. [5] The National Institute for Occupational Safety and Health (NIOSH)
– Colorless watery liquid. [5] The National Institute for Occupational Safety and Health (NIOSH)
–shown Colorless liquid [6] Hazardous Substances Data Bank (HSDB)cites NIOSH. NIOSH Pocket Guide to Chemical Hazards. Department of Health & Human Services, Centers for Disease Control & Prevention. National Institute for Occupational Safety & Health. DHHS (NIOSH) Publication No. 2010-168 (2010). Available from: https://www.cdc.gov/niosh/npg
– Clear, colorless liquid [6] Hazardous Substances Data Bank (HSDB)cites Larranaga, M.D., Lewis, R.J. Sr., Lewis, R.A.; Hawley's Condensed Chemical Dictionary 16th Edition. John Wiley & Sons, Inc. Hoboken, NJ 2016., p. 892
Odor: Characteristic pungent odor[6]
Melting point: -97.53 °C[7]
5 values
5 of 5 sources agree on it (most common value).
Value As written Source
−98 °C -144 °F (NTP, 1992) [1] CAMEO Chemicalscites National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.
−98 °C -98 °C [3] ILO-WHO International Chemical Safety Cards (ICSCs)
−98 °C -144 °F [4] Occupational Safety and Health Administration (OSHA)
−97.5 °Cshown -97.53 °C [7] PAC Chemical Database, U.S. Department of Energy
−98 °C -144 °F [5] The National Institute for Occupational Safety and Health (NIOSH)
Boiling point: 64.6 °C (148.3 °F) at 760 mmHg (NTP, 1992)[1]
5 values
5 of 5 sources agree on it (most common value).
Value As written Source
64.6 °Cshown 148.3 °F at 760 mmHg (NTP, 1992) [1] CAMEO Chemicalscites National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.
65 °C 65 °C [3] ILO-WHO International Chemical Safety Cards (ICSCs)
64 °C 147 °F [4] Occupational Safety and Health Administration (OSHA)
64.6 °C 64.6 °C @760 [mm Hg] [7] PAC Chemical Database, U.S. Department of Energy
64 °C 147 °F [5] The National Institute for Occupational Safety and Health (NIOSH)
Density: 0.7914 @ 20°C[7]
5 values
5 of 5 sources agree on it (most common value).
Value As written Source
– 0.792 at 68 °F (USCG, 1999) - Less dense than water [1] CAMEO Chemicalscites U.S. Coast Guard. 1999. Chemical Hazard Response Information System (CHRIS) - Hazardous Chemical Data. Commandant Instruction 16465.12C. Washington, D.C.: U.S. Government Printing Office.
– Relative density (water = 1): 0.79 [3] ILO-WHO International Chemical Safety Cards (ICSCs)
– 0.79 [4] Occupational Safety and Health Administration (OSHA)
–shown 0.7914 @ 20°C [7] PAC Chemical Database, U.S. Department of Energy
– 0.79 [5] The National Institute for Occupational Safety and Health (NIOSH)
Solubility in water: Solubility in water: miscible[3]
6 values
From ILO-WHO International Chemical Safety Cards (ICSCs), the most authoritative source here.
Value As written Source
– greater than or equal to 100 mg/mL at 70 °F (NTP, 1992) [1] CAMEO Chemicalscites National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.
– Miscible with water at 25 °C [6] Hazardous Substances Data Bank (HSDB)cites Riddick, J.A., W.B. Bunger, Sakano T.K. Techniques of Chemistry 4th ed., Volume II. Organic Solvents. New York, NY: John Wiley and Sons., 1985., p. V2: 190
– Miscible with water at 20 °C [6] Hazardous Substances Data Bank (HSDB)cites Flick, E.W. Industrial Solvents Handbook. 3rd ed. Park Ridge, NJ: Noyes Publications, 1985., p. 188
– Soluble in acetone, chloroform [6] Hazardous Substances Data Bank (HSDB)cites Lide, D.R., G.W.A. Milne (eds.). Handbook of Data on Organic Compounds. Volume I. 3rd ed. CRC Press, Inc. Boca Raton ,FL. 1994., p. V4: 3388
–shown Solubility in water: miscible [3] ILO-WHO International Chemical Safety Cards (ICSCs)
– Miscible [5] The National Institute for Occupational Safety and Health (NIOSH)
log P: -0.74[3]
2 values
Sources disagree; from ILO-WHO International Chemical Safety Cards (ICSCs), the most authoritative.
Value As written Source
– log Kow = -0.77 [6] Hazardous Substances Data Bank (HSDB)cites Hansch, C., Leo, A., D. Hoekman. Exploring QSAR - Hydrophobic, Electronic, and Steric Constants. Washington, DC: American Chemical Society., 1995., p. 3
–shown -0.74 [3] ILO-WHO International Chemical Safety Cards (ICSCs)
pKa: pKa = 15.3[6]
Vapor pressure: 237.87 mmHg at 38 °C (100 °F, NTP 1992)[1]
6 values
Sources disagree; from CAMEO Chemicals, the most authoritative.
Value As written Source
100 mmHg 100 mmHg at 70.2 °F [1] CAMEO Chemicalscites National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.
237.87 mmHgshown 237.87 mmHg at 100 °F (NTP, 1992) [1] CAMEO Chemicalscites National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.
92 mmHg VP: 92 mm Hg at 20 °C [6] Hazardous Substances Data Bank (HSDB)cites Larranaga, M.D., Lewis, R.J. Sr., Lewis, R.A.; Hawley's Condensed Chemical Dictionary 16th Edition. John Wiley & Sons, Inc. Hoboken, NJ 2016., p. 892
127 mmHg 127 mm Hg at 25 °C [6] Hazardous Substances Data Bank (HSDB)cites Boublik, T., Fried, V., and Hala, E., The Vapour Pressures of Pure Substances. Second Revised Edition. Amsterdam: Elsevier, 1984., p. 57
97 mmHg Vapor pressure, kPa at 20 °C: 12.9 [3] ILO-WHO International Chemical Safety Cards (ICSCs)
75 mmHg 75 [mm Hg] @15.2 °C [7] PAC Chemical Database, U.S. Department of Energy
2 more values were reported but failed the checks (unreadable or out of range), so they are not shown.
Flash point: 9.7 °C (49.5 °F) - closed cup[6]
8 values
5 of 5 sources agree on it (most common value).
Value As written Source
11 °C 52 °F (NTP, 1992) [1] CAMEO Chemicalscites National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.
11 °C 52 °F (NFPA, 2010) [1] CAMEO Chemicalscites National Fire Protection Association. 2010. Fire Protection Guide to Hazardous Materials, 14th edition, edited by Guy R. Colonna. Quincy, MA: National Fire Protection Association. Note that this information is subject to the copyright restrictions of the organization that provided the data.
9.7 °Cshown 9.7 °C (49.5 °F) - closed cup [6] Hazardous Substances Data Bank (HSDB)cites Sigma-Aldrich; Safety Data Sheet for Methanol. Product Number: 322415, Version 6.3. (Revision Date 09/23/2016). Available from, as of July 20, 2017: https://www.sigmaaldrich.com/safety-center.html
15.6 °C 15.6 °C (open cup) /from table/ [6] Hazardous Substances Data Bank (HSDB)cites WHO/International Programme on Chemical Safety; Environmental Health Criteria 196, Methanol (1997). Available from, as of July 19, 2017: https://www.inchem.org/pages/ehc.html
11 °C 52 °F (11 °C) (closed cup) [6] Hazardous Substances Data Bank (HSDB)cites National Fire Protection Association; Fire Protection Guide to Hazardous Materials. 14TH Edition, Quincy, MA 2010, p. 325-81
9 °C 9 °C c.c. [3] ILO-WHO International Chemical Safety Cards (ICSCs)
11 °C 52 °F [4] Occupational Safety and Health Administration (OSHA)
11 °C 52 °F [5] The National Institute for Occupational Safety and Health (NIOSH)
Autoignition temperature: 464 °C (867 °F)[6]
3 values
2 of 3 sources agree on it (most common value).
Value As written Source
464 °C 867 °F (USCG, 1999) [1] CAMEO Chemicalscites U.S. Coast Guard. 1999. Chemical Hazard Response Information System (CHRIS) - Hazardous Chemical Data. Commandant Instruction 16465.12C. Washington, D.C.: U.S. Government Printing Office.
464 °Cshown 867 °F (464 °C) [6] Hazardous Substances Data Bank (HSDB)cites National Fire Protection Association; Fire Protection Guide to Hazardous Materials. 14TH Edition, Quincy, MA 2010, p. 325-81
440 °C 440 °C [3] ILO-WHO International Chemical Safety Cards (ICSCs)
Viscosity: Reported, but no value passed the checks.
The value and why
0.544 mPa at 25 °C (could not be read; source [3])

Value	As written	Source
–	Methanol appears as a colorless fairly volatile liquid with a faintly sweet pungent odor like that of ethyl alcohol. Completely mixes with water. The vapors are slightly heavier than air and may travel some distance to a source of ignition and flash back. Any accumulation of vapors in confined spaces, such as buildings or sewers, may explode if ignited. Used to make chemicals, to remove water from automotive and aviation fuels, as a solvent for paints and plastics, and as an ingredient in a wide variety of products.	[1] CAMEO Chemicals
–	Methanol, tallow alkyl iminobisethanol appears as a yellow-colored liquid with an "alcohol" odor. Less dense than water. Vapors heavier than air. Corrosive. Contact may severely irritate skin, eyes and mucous membranes. May be toxic by ingestion, inhalation and skin absorption. Used to make other chemicals.	[1] CAMEO Chemicals
–	Liquid; CBI	[2] EPA Chemical Data Reporting (CDR)
–	COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR.	[3] ILO-WHO International Chemical Safety Cards (ICSCs)
–	Colorless liquid with a characteristic pungent odor.	[4] Occupational Safety and Health Administration (OSHA)
–	Colorless liquid with a characteristic pungent odor.	[5] The National Institute for Occupational Safety and Health (NIOSH)
–	Colorless watery liquid.	[5] The National Institute for Occupational Safety and Health (NIOSH)
–shown	Colorless liquid	[6] Hazardous Substances Data Bank (HSDB)cites NIOSH. NIOSH Pocket Guide to Chemical Hazards. Department of Health & Human Services, Centers for Disease Control & Prevention. National Institute for Occupational Safety & Health. DHHS (NIOSH) Publication No. 2010-168 (2010). Available from: https://www.cdc.gov/niosh/npg
–	Clear, colorless liquid	[6] Hazardous Substances Data Bank (HSDB)cites Larranaga, M.D., Lewis, R.J. Sr., Lewis, R.A.; Hawley's Condensed Chemical Dictionary 16th Edition. John Wiley & Sons, Inc. Hoboken, NJ 2016., p. 892

Value	As written	Source
−98 °C	-144 °F (NTP, 1992)	[1] CAMEO Chemicalscites National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.
−98 °C	-98 °C	[3] ILO-WHO International Chemical Safety Cards (ICSCs)
−98 °C	-144 °F	[4] Occupational Safety and Health Administration (OSHA)
−97.5 °Cshown	-97.53 °C	[7] PAC Chemical Database, U.S. Department of Energy
−98 °C	-144 °F	[5] The National Institute for Occupational Safety and Health (NIOSH)

Value	As written	Source
64.6 °Cshown	148.3 °F at 760 mmHg (NTP, 1992)	[1] CAMEO Chemicalscites National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.
65 °C	65 °C	[3] ILO-WHO International Chemical Safety Cards (ICSCs)
64 °C	147 °F	[4] Occupational Safety and Health Administration (OSHA)
64.6 °C	64.6 °C @760 [mm Hg]	[7] PAC Chemical Database, U.S. Department of Energy
64 °C	147 °F	[5] The National Institute for Occupational Safety and Health (NIOSH)

Value	As written	Source
–	0.792 at 68 °F (USCG, 1999) - Less dense than water	[1] CAMEO Chemicalscites U.S. Coast Guard. 1999. Chemical Hazard Response Information System (CHRIS) - Hazardous Chemical Data. Commandant Instruction 16465.12C. Washington, D.C.: U.S. Government Printing Office.
–	Relative density (water = 1): 0.79	[3] ILO-WHO International Chemical Safety Cards (ICSCs)
–	0.79	[4] Occupational Safety and Health Administration (OSHA)
–shown	0.7914 @ 20°C	[7] PAC Chemical Database, U.S. Department of Energy
–	0.79	[5] The National Institute for Occupational Safety and Health (NIOSH)

Value	As written	Source
–	greater than or equal to 100 mg/mL at 70 °F (NTP, 1992)	[1] CAMEO Chemicalscites National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.
–	Miscible with water at 25 °C	[6] Hazardous Substances Data Bank (HSDB)cites Riddick, J.A., W.B. Bunger, Sakano T.K. Techniques of Chemistry 4th ed., Volume II. Organic Solvents. New York, NY: John Wiley and Sons., 1985., p. V2: 190
–	Miscible with water at 20 °C	[6] Hazardous Substances Data Bank (HSDB)cites Flick, E.W. Industrial Solvents Handbook. 3rd ed. Park Ridge, NJ: Noyes Publications, 1985., p. 188
–	Soluble in acetone, chloroform	[6] Hazardous Substances Data Bank (HSDB)cites Lide, D.R., G.W.A. Milne (eds.). Handbook of Data on Organic Compounds. Volume I. 3rd ed. CRC Press, Inc. Boca Raton ,FL. 1994., p. V4: 3388
–shown	Solubility in water: miscible	[3] ILO-WHO International Chemical Safety Cards (ICSCs)
–	Miscible	[5] The National Institute for Occupational Safety and Health (NIOSH)

Value	As written	Source
–	log Kow = -0.77	[6] Hazardous Substances Data Bank (HSDB)cites Hansch, C., Leo, A., D. Hoekman. Exploring QSAR - Hydrophobic, Electronic, and Steric Constants. Washington, DC: American Chemical Society., 1995., p. 3
–shown	-0.74	[3] ILO-WHO International Chemical Safety Cards (ICSCs)

Value	As written	Source
100 mmHg	100 mmHg at 70.2 °F	[1] CAMEO Chemicalscites National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.
237.87 mmHgshown	237.87 mmHg at 100 °F (NTP, 1992)	[1] CAMEO Chemicalscites National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.
92 mmHg	VP: 92 mm Hg at 20 °C	[6] Hazardous Substances Data Bank (HSDB)cites Larranaga, M.D., Lewis, R.J. Sr., Lewis, R.A.; Hawley's Condensed Chemical Dictionary 16th Edition. John Wiley & Sons, Inc. Hoboken, NJ 2016., p. 892
127 mmHg	127 mm Hg at 25 °C	[6] Hazardous Substances Data Bank (HSDB)cites Boublik, T., Fried, V., and Hala, E., The Vapour Pressures of Pure Substances. Second Revised Edition. Amsterdam: Elsevier, 1984., p. 57
97 mmHg	Vapor pressure, kPa at 20 °C: 12.9	[3] ILO-WHO International Chemical Safety Cards (ICSCs)
75 mmHg	75 [mm Hg] @15.2 °C	[7] PAC Chemical Database, U.S. Department of Energy

Value	As written	Source
11 °C	52 °F (NTP, 1992)	[1] CAMEO Chemicalscites National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.
11 °C	52 °F (NFPA, 2010)	[1] CAMEO Chemicalscites National Fire Protection Association. 2010. Fire Protection Guide to Hazardous Materials, 14th edition, edited by Guy R. Colonna. Quincy, MA: National Fire Protection Association. Note that this information is subject to the copyright restrictions of the organization that provided the data.
9.7 °Cshown	9.7 °C (49.5 °F) - closed cup	[6] Hazardous Substances Data Bank (HSDB)cites Sigma-Aldrich; Safety Data Sheet for Methanol. Product Number: 322415, Version 6.3. (Revision Date 09/23/2016). Available from, as of July 20, 2017: https://www.sigmaaldrich.com/safety-center.html
15.6 °C	15.6 °C (open cup) /from table/	[6] Hazardous Substances Data Bank (HSDB)cites WHO/International Programme on Chemical Safety; Environmental Health Criteria 196, Methanol (1997). Available from, as of July 19, 2017: https://www.inchem.org/pages/ehc.html
11 °C	52 °F (11 °C) (closed cup)	[6] Hazardous Substances Data Bank (HSDB)cites National Fire Protection Association; Fire Protection Guide to Hazardous Materials. 14TH Edition, Quincy, MA 2010, p. 325-81
9 °C	9 °C c.c.	[3] ILO-WHO International Chemical Safety Cards (ICSCs)
11 °C	52 °F	[4] Occupational Safety and Health Administration (OSHA)
11 °C	52 °F	[5] The National Institute for Occupational Safety and Health (NIOSH)

Value	As written	Source
464 °C	867 °F (USCG, 1999)	[1] CAMEO Chemicalscites U.S. Coast Guard. 1999. Chemical Hazard Response Information System (CHRIS) - Hazardous Chemical Data. Commandant Instruction 16465.12C. Washington, D.C.: U.S. Government Printing Office.
464 °Cshown	867 °F (464 °C)	[6] Hazardous Substances Data Bank (HSDB)cites National Fire Protection Association; Fire Protection Guide to Hazardous Materials. 14TH Edition, Quincy, MA 2010, p. 325-81
440 °C	440 °C	[3] ILO-WHO International Chemical Safety Cards (ICSCs)

Each value as its source reports it, with the source's number after it (listed under References). Where several sources report a property, the row shows the value most of them agree on, the rule the app uses; open the values to see every one.

Calculated

Heavy atoms: 2
Rings: 0
Aromatic rings: 0
Fraction sp³ carbons (Fsp3): 1
H-bond donors: 1
H-bond acceptors: 1
Rotatable bonds: 0
TPSA (Å²): 20.2
Formal charge: 0
XLogP3: -0.5 PubChem
Complexity: 2 PubChem
Stereocenters: None
Double-bond geometry: None specified
Point group: Cs of one 3D conformer with its hydrogens, by Athanor’s engine (as in the app)

Elemental analysis

C37.49%
H12.58%
O49.93%

Isotope pattern

Each peak is a nominal mass with its abundance-weighted exact mass, as a percentage of the tallest, from IUPAC natural isotope abundances.

Computed from the structure with RDKit 2026.09 when this page was built, beside PubChem's own computed values from its record; where the two differ, both are shown.

Predicted

log P: -0.39 Crippen (Wildman and Crippen 1999)
log S (water solubility): 0.21 ESOL (Delaney 2004), log mol/L
Synthetic accessibility: 2.7 SA score, 1 easy to 10 hard (Ertl and Schuffenhauer 2009)

Drug-likeness: Lipinski’s rule of five

Molecular weight ≤ 500: 32.04
log P ≤ 5 (Crippen): -0.39
H-bond donors ≤ 5: 1
H-bond acceptors ≤ 10: 1

Passes all four rules.

¹³C NMR shifts, predicted

Predictions, not measurements; each names its method. A measured log P, where a source reports one, is under Physical properties.

Safety

Danger

Harmonized EU classification (CLP Annex VI). Source [8].

Flammable
Acute toxicity
Health hazard

NFPA 704[6]

H225Highly Flammable liquid and vapor
H301Toxic if swallowed
H311Toxic in contact with skin
H331Toxic if inhaled

Precautionary statements: P210, P233, P240, P241, P242, P243, P260, P261, P262, P264, P270, P271, P280, P301+P316, P302+P352, P303+P361+P353, P304+P340, P308+P316, P316, P321, P330, P361+P364, P370+P378, P403+P233, P403+P235, P405, P501

View all classifications (4)

[8] Regulation (EC) No 1272/2008 of the European Parliament and of the Council · DangerH225, H301, H311, H331
[9] European Chemicals Agency (ECHA)This chemical does not meet GHS hazard criteria for < 0.1% (4 of 7623) of reports.
[9] European Chemicals Agency (ECHA) · 7,623 reports · DangerH301, H311, H331
[6] Hazardous Substances Data Bank (HSDB) · DangerH225, H301, H311, H331, H370

Exposure limits

PEL-TWA (8-Hour Time Weighted Average): 200 ppm (260 mg/m³)[4]
PEL: TWA 200 ppm (260 mg/m3) See Appendix G[5]
REL-STEL (Short Term Exposure Limit): 250 ppm (325 mg/m³)[4]
REL: TWA 200 ppm (260 mg/m3) ST 250 ppm (325 mg/m3) [skin][5]
TLV: 200 ppm as TWA; 250 ppm as STEL; (skin); BEI issued.[3]
TLV-TWA (Time Weighted Average): 200 ppm [2008][4]

First aid

Eyes: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. Immediately transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop. Skin: Immediately flood affected skin with water while removing and isolating all contaminated clothing.[1]
Excerpt from ERG Guide 132 [Flammable Liquids - Corrosive]: Refer to the "General First Aid" section. Specific First Aid: For corrosives, in case of contact, immediately flush skin or eyes with running water for at least 30 minutes. Additional flushing may be required. In case of burns, immediately cool affected skin for as long as possible with cold water. Do not remove clothing if adhering to skin. (ERG, 2024)[1]
General First Aid: · Call 911 or emergency medical service. · Ensure that medical personnel are aware of the material(s) involved, take precautions to protect themselves and avoid contamination. · Move victim to fresh air if it can be done safely. · Administer oxygen if breathing is difficult. · If victim is not breathing: -- DO NOT perform mouth-to-mouth resuscitation; the victim may have ingested or inhaled the substance. -- If equipped and pulse detected, wash face and mouth, then give artificial respiration using a proper respiratory medical device (bag-valve mask, pocket mask equipped…[10]
General First Aid: · Call 911 or emergency medical service. · Ensure that medical personnel are aware of the material(s) involved, take precautions to protect themselves and avoid contamination. · Move victim to fresh air if it can be done safely. · Administer oxygen if breathing is difficult. · If victim is not breathing: -- DO NOT perform mouth-to-mouth resuscitation; the victim may have ingested or inhaled the substance. -- If equipped and pulse detected, wash face and mouth, then give artificial respiration using a proper respiratory medical device (bag-valve mask, pocket mask equipped…[10]

Storage

Separated from incompatible materials. Cool. Fireproof. Keep in a well-ventilated room.[3]
Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage.[6]
When large amounts of methanol are stored in enclosed 14 Methanol spaces, monitoring by means of lower explosion limit monitors is desirable.[6]
Permanently installed fire-extinguishing equipment should be provided in large storage facilities. Water cannons are generally installed in storage tank farms to cool steel constructions and neighboring tanks in the event of fire. Large tanks should have permanently installed piping systems for alcohol-resistant fire-extinguishing foams.[6]

Incompatibilities

Incompatible materials: Acid chlorides, acid anhydrides, oxidizing agents, alkali metals, reducing agents, acids.[6]
Distillation of mixtures with C1-C3 alcohols gives highly explosive alkyl perchlorates. (barium perchlorate)[6]
During hydrogenation of an unspecified substrate in methanol solution under hydrogen at 100 bar with Raney nickel catalyst, sudden temperature increase led to hydrogenolysis of methanol to methane, and the pressure increase led to an overpressure accident. Such incidents may be avoided by control of agitation, limiting the amount of catalyst, and checking thermal stability of starting materials and end products beforehand.[6]
Can react vigorously with oxidizing materials.[6]

Safety data sheets on the supplier’s page: Clearsynth, AA BLOCKS, LGC Standards.

Always read the supplier’s safety data sheet before working with it.

Spectra

Experimental spectra held by these sources; each link opens the source's own record.

Literature

Reading PubChem, OpenAlex and GSRS…

Bioactivity

Reading ChEMBL…

References

[1]CAMEO Chemicals · Public domain (NOAA) · via PubChem · retrieved 2026-10-14
[2]EPA Chemical Data Reporting (CDR) · Public domain (US EPA) · via PubChem · retrieved 2026-10-14
[3]ILO-WHO International Chemical Safety Cards (ICSCs) · CC BY 4.0 · via PubChem · retrieved 2026-10-14
[4]Occupational Safety and Health Administration (OSHA) · Public domain (US DOL) · via PubChem · retrieved 2026-10-14
[5]The National Institute for Occupational Safety and Health (NIOSH) · Public domain (US CDC) · via PubChem · retrieved 2026-10-14
[6]Hazardous Substances Data Bank (HSDB) · Public domain (US NLM) · via PubChem · retrieved 2026-10-14
[7]PAC Chemical Database, U.S. Department of Energy · Public domain (US DOE) · via PubChem · retrieved 2026-10-14
[8]Regulation (EC) No 1272/2008 of the European Parliament and of the Council · EU reuse policy, CC BY 4.0 · via PubChem · retrieved 2026-10-14
[9]European Chemicals Agency (ECHA) · ECHA legal notice: reuse with acknowledgement · via PubChem · retrieved 2026-10-14
[10]Emergency Response Guidebook (ERG) · Public domain (US DOT) · via PubChem · retrieved 2026-10-14
[11]NMRShiftDB · Linked only · via PubChem · retrieved 2026-10-14
[12]Human Metabolome Database (HMDB) · Linked only · via PubChem · retrieved 2026-10-14
[13]SpectraBase · Linked only · via PubChem · retrieved 2026-10-14
[14]MassBank of North America (MoNA) · CC BY 4.0 · via PubChem · retrieved 2026-10-14
[15]NIST Mass Spectrometry Data Center · Linked only · via PubChem · retrieved 2026-10-14
[16]MassBank Europe · Linked only · via PubChem · retrieved 2026-10-14
·Calculated values: computed by Athanor with RDKit 2026.09 from the structure.
·Literature on PubChem

Data last updated 2026-10-14.