Astaxanthin
- IUPAC name
- (6S)-6-hydroxy-3-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-18-[(4S)-4-hydroxy-2,6,6-trimethyl-3-oxocyclohexen-1-yl]-3,7,12,16-tetramethyloctadeca-1,3,5,7,9,11,13,15,17-nonaenyl]-2,4,4-trimethylcyclohex-2-en-1-one
- Molecular formula
- C40H52O4
- Molecular weight
- 596.8 g/mol
- Exact mass
- 596.38656014 Da
- XLogP3
- 10.3
- Topological polar surface area
- 74.6 Ų
- Hydrogen-bond donors
- 2
- Hydrogen-bond acceptors
- 4
- Covalent units
- 1
- Defined stereocentres
- 2
Also known as
16 more reported names
External database identifiers
- ChEBI:CHEBI:40968
- ChEMBL:CHEMBL1255871
- EPA DTXSID:DTXSID00893777
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.