Library

ddCTP

Athanor · official

C9H16N3O12P3 · 451.16 g/mol

IUPAC name: [[(2S,5R)-5-(4-amino-2-oxopyrimidin-1-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl] phosphono hydrogen phosphate

Also called dideoxycytidine triphosphate, ddNTP

Open in Athanor
The structure of ddCTP
Drawn from its SMILES with RDKit

Names and identifiers

IUPAC name
[[(2S,5R)-5-(4-amino-2-oxopyrimidin-1-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl] phosphono hydrogen phosphate
Synonyms
dideoxycytidine triphosphate, ddNTP, 2',3'-Dideoxycytidine 5'-triphosphate
+ 36 more

2',3'-ddCTP, Triphosphoric acid, P-((5-(4-amino-2-oxo-1(2H)-pyrimidinyl)tetrahydro-2-furanyl)methyl) ester, (2S-cis)-, ddCTP-2',3', RefChem:919700, Dideoxycytidine 5'-Triphosphate, [[(2S,5R)-5-(4-amino-2-oxopyrimidin-1-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl] phosphono hydrogen phosphate, Cytidine 5'-(tetrahydrogen triphosphate), 2',3'-dideoxy-, DideoxyCTP, 2',3'-dideoxycytidine-5'-triphosphate, ((2S,5R)-5-(4-amino-2-oxopyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methyl tetrahydrogen triphosphate, ddC-TP, ARLKCWCREKRROD-POYBYMJQSA-N, Liposomal(ddCTP), DTXSID701343965, [[(2S,5R)-5-(4-amino-2-oxo-pyrimidin-1-yl)tetrahydrofuran-2-yl]methoxy-hydroxy-phosphoryl] phosphono hydrogen phosphate, 2',3'-Dideoxycytidine triphosphate, Zalcitabine triphosphate, orb65196, orb638822, SCHEMBL210922, orb1690371, orb1733965, orb1734210, orb2702618, orb2702619, CHEMBL1201384, EX-A9031S, BDBM50483420, EBC-14298, AKOS040758264, 2',3'-Dideoxycytosine-5'-triphosphate, 2',3'-dideoxy-cytidine-5'-triphosphate, DA-52366, HY-137697, CS-0141252, T40759

Molecular formula
C9H16N3O12P3
Empirical formula
C9H16N3O12P3
Molecular weight
451.16 g/mol
Exact mass
450.99468
CAS number
93039-00-4
PubChem CID
119119
Canonical SMILES
C1CC(OC1COP(=O)(O)OP(=O)(O)OP(=O)(O)O)N2C=CC(=NC2=O)N
Isomeric SMILES
C1C[C@@H](O[C@@H]1COP(=O)(O)OP(=O)(O)OP(=O)(O)O)N2C=CC(=NC2=O)N
InChI
InChI=1S/C9H16N3O12P3/c10-7-3-4-12(9(13)11-7)8-2-1-6(22-8)5-21-26(17,18)24-27(19,20)23-25(14,15)16/h3-4,6,8H,1-2,5H2,(H,17,18)(H,19,20)(H2,10,11,13)(H2,14,15,16)/t6-,8+/m0/s1
InChIKey
ARLKCWCREKRROD-POYBYMJQSA-N
Molfile

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

Calculated

Heavy atoms
27
Rings
2
Aromatic rings
1
Fraction sp³ carbons (Fsp3)
0.56
H-bond donors
5
H-bond acceptors
10 computed here · PubChem 12
Rotatable bonds
8
TPSA (Ų)
230 computed here · PubChem 228
Formal charge
0
XLogP3
-5.5 PubChem
Complexity
792 PubChem
Stereocenters
2 defined, 2 undefinedCIP: C6: R · C9: S · P12: undefined · P16: undefined
Double-bond geometry
None specified
Point group
C1 of one 3D conformer with its hydrogens, by Athanor’s engine (as in the app)

Elemental analysis

  • C23.96%
  • H3.57%
  • N9.31%
  • O42.55%
  • P20.60%

Isotope pattern

100%450.99511%451.9983.1%452.999454.002

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
-0.15 Crippen (Wildman and Crippen 1999)
log S (water solubility)
-2.18 ESOL (Delaney 2004), log mol/L
Synthetic accessibility
4.3 SA score, 1 easy to 10 hard (Ertl and Schuffenhauer 2009)

Drug-likeness: Lipinski’s rule of five

  • Molecular weight ≤ 500: 451.16
  • log P ≤ 5 (Crippen): -0.15
  • H-bond donors ≤ 5: 5
  • H-bond acceptors ≤ 10: 10

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

No GHS hazard classification was found in the sources.

Safety data sheets on the supplier’s page: Biorbyt, CATO Research Chemicals Inc., AA BLOCKS.

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

Literature

Reading PubChem, OpenAlex and GSRS…

Bioactivity

Reading ChEMBL…

References

  1. ·Calculated values: computed by Athanor with RDKit 2026.09 from the structure.
  2. ·Literature on PubChem

Data last updated 2026-10-14.