Athanor Quick Tools
One small chemistry task each, done on the page. Free, with no sign-up, and the file conversions run in your browser on Athanor’s own engine.
A name: Caffeine · C8H10N4O2 · 194.19 g/mol
Name to structure
A common name, an IUPAC name, a CAS number or a SMILES, drawn.
1,3,7-trimethylpurine-2,6-dione
3D molecule viewer
Turn any molecule in 3D, from a name, a SMILES or a PDB, SDF or XYZ file.
Molar mass calculator
Formula, molar mass and exact mass from a name or a structure.
C8H10N4O2
0.00g/mol
Draw a molecule
Draw in your browser, then copy SMILES or save MOL, PNG or SVG.
Chemistry file converter
SMILES, MOL and SDF to each other, and to PNG or SVG. Nothing leaves your device.
SMILES
CN1C=NC2=C1C(=O)N(C(=O)N2C)C
MOL V3000
Every converter
- Chemistry file converterSMILES, MOL and SDF to each other, and to PNG or SVG.
- SMILES to MOLA SMILES string as a MOL file.
- MOL to SMILESA MOL file as a SMILES string.
- MRV to MOLA Marvin .mrv as a MOL file.
- MOL to MRVA MOL file as a Marvin .mrv.
- MRV to CDXMLMarvin to ChemDraw.
- CDXML to MRVChemDraw to Marvin.
- MRV to SMILESA Marvin .mrv as SMILES.
- SMILES to MRVSMILES as a Marvin .mrv.
- SMILES to XYZSMILES as 3D coordinates.
- MOL to XYZA MOL file as 3D coordinates.
- SMILES to MOL2SMILES as a 3D Tripos MOL2 file.
- MOL to MOL2A MOL file as a 3D Tripos MOL2 file.
- SMILES to PDBSMILES as a 3D PDB file.
- MOL to PDBA MOL file as a 3D PDB file.
- XYZ to MOLXYZ coordinates as a MOL file, bonds worked out.
- MOL2 to SMILESA MOL2 file as SMILES.
- CDX to MOLA ChemDraw .cdx as a MOL file.
- CDX to SMILESA ChemDraw .cdx as SMILES.
- CDX to CDXMLBinary ChemDraw to its text form.
- CDXML to CDXChemDraw text form to binary.
- CDXML to MOLA ChemDraw CDXML file as a MOL file.
- MOL to CDXMLA MOL file as ChemDraw CDXML.
- MOL to CDXA MOL file as a ChemDraw .cdx.
- SMILES to CDXMLA SMILES string as ChemDraw CDXML.
- SDF to SMILESEvery record of an SDF file as SMILES.
- SMILES to SDFA list of SMILES as one SDF file.
- MOL to PNGA MOL file drawn as a PNG or SVG picture.
- SMILES to imageA SMILES string drawn as a PNG or SVG picture.
- MOL V2000 to V3000An older MOL file in the V3000 format.
Biology and sequences
File formats, explained
Looking up a compound? The Athanor Library has about a thousand, each with its structure, properties and hazards.