C9H8O3
164.16 g/mol
Pharmaceutical IntermediateWarning
P-coumaric acid
CAS7400-08-0EC231-000-0
Category
Pharmaceutical Intermediate
Compound Class
Organic Acid
Primary Use
Pharmaceutical Intermediate
p-Coumaric acid is a naturally occurring phenolic compound found in plants, where it functions as a metabolite. It is a coumaric acid derivative with a hydroxy group at the fourth position of the phenyl ring.
pharmaceutical intermediateplant metabolite
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
ReferenceSame Category
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CAS74073-22-6
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CAS740842-50-6
pharmaceutical intermediate
ReferenceSame Category
3,5-Dibromo-1,2,4-triazole
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pharmaceutical intermediate
Referencestereoisomer of
Cis-4-coumaric acid
CAS4501-31-9
flavor and fragrance intermediate
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H301Toxic if swallowed
H311Toxic in contact with skin
H314Causes severe skin burns and eye damage
H317May cause an allergic skin reaction
H318Causes serious eye damage
Customs Tariff Classification
The international HS code for P-coumaric acid (CAS 7400-08-0) is 2918.29.
HS code (international, 6-digit)
2918.29
EU CN code (8-digit)
2918 29 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
(E)-3-(4-hydroxyphenyl)prop-2-enoic acid
InChIKey
NGSWKAQJJWESNS-ZZXKWVIFSA-N
SMILES
C1=CC(=CC=C1/C=C/C(=O)O)O
Synonyms (76)
- (E)-4-hydroxycinnamic acid
- (E)-p-Coumaric acid
- (E)-p-Hydroxycinnamic acid
- 3-(4-hydroxyphenyl)acrylate
- 4'-Hydroxycinnamate
- 4'-hydroxycinnamic acid
- 4-HYDROXYPHENYLPROPENOIC ACID
- 4-Hydroxyphenylpropenoate
- 4-coumarate
- 4-coumaric acid, (E)-
- 4-hydroxy cinnamic aicd
- 4f8j
- 4qem
- Cinnamic acid, p-hydroxy-
- Coumaric Acid
- E-coumaric acid
- Hydroxycinnamic acid
- Naringeninic acid
- ORISTAR PCA
- Para coumarate
- Para-Coumaric acid
- b-[4-Hydroxyphenyl]acrylate
- hydroxycinnamate
- p-Coumaric acid (Standard)
- p-Coumaric acid,trans
- p-Cumarate
- p-Cumaric acid
- p-Hydroxy-cinnamic acid
- p-Hydroxycinnamate
- p-Hydroxycinnamic acid, trans
- p-Hydroxyphenylacrylic acid
- p-coumarate
- p-coumaric acid
- p-hydroxy-trans-cinnamic acid
- p-hydroxycinnamic acid (M4)
- p-hydroxylcinnamic acid
- parahydroxycinnamic acid
- rho-coumaric acid
- trans-4-Hydroxycinnamic acid
- trans-4-coumaric acid
- trans-HPPA
- trans-coumaric acid
- trans-hydroxycinnamic acid
- trans-p-Coumaric acid
- trans-p-Coumarinic acid
- trans-p-Cumaric Acid
- trans-p-Hydroxycinnamate
- trans-p-Hydroxycinnamic acid
- trans-p-coumarate
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