CAS 331-39-5PubChem CID 689043
Caffeic Acid
- IUPAC name
- (E)-3-(3,4-dihydroxyphenyl)prop-2-enoic acid
- Molecular formula
- C9H8O4
- Molecular weight
- 180.16 g/mol
- Exact mass
- 180.04225873 Da
- XLogP3
- 1.2
- Topological polar surface area
- 77.8 Ų
- Hydrogen-bond donors
- 3
- Hydrogen-bond acceptors
- 4
- Covalent units
- 1
- Defined stereocentres
- 0
Also known as
3,4-Dihydroxycinnamic acid3,4-Dihydroxybenzeneacrylic acid3-(3,4-Dihydroxyphenyl)-2-propenoic acidCinnamic acid, 3,4-dihydroxy-2-Propenoic acid, 3-(3,4-dihydroxyphenyl)-4-(2-Carboxyethenyl)-1,2-dihydroxybenzene3-(3,4-Dihydroxyphenyl)propenoic acid4-(2'-Carboxyvinyl)-1,2-dihydroxybenzene
16 more reported names
NSC 57197U2S3A33KVMNSC-57197NSC-623438CHEBI:36281trans-3,4-Dihydroxycinnamic AcidCHEBI:164332-Propenoic acid, 3-(3,4-dihydroxyphenyl)-, (2E)-CHEBI:17395Caffeic Acid 1507caffeic acid, (E)-RefChem:6400Trans 3,4-Dihydroxycinnamic acid206-361-2(2Z)-3-(3,4-dihydroxyphenyl)prop-2-enoic acidcis-Caffeic acid
External database identifiers
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.