C12H14O5
238.24 g/mol
Research ReagentWarning
3,4,5-TRIMETHOXYCINNAMIC ACID
CAS90-50-6EC201-999-8
Category
Research Reagent
Compound Class
Organic Acid
Primary Use
Research Compound
3,4,5-Trimethoxycinnamic acid is a methoxycinnamic acid with three methoxy groups at positions 3, 4, and 5 on the aromatic ring. It has been identified as an allergen and is found in plants such as Polygala tenuifolia, Piper swartzianum, and Piper tuberculatum.
research compoundallergen
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
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Safety Reference
Warning
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
Customs Tariff Classification
The international HS code for 3,4,5-TRIMETHOXYCINNAMIC ACID (CAS 90-50-6) is 2918.99.
HS code (international, 6-digit)
2918.99
EU CN code (8-digit)
2918 99 90
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-(3,4,5-trimethoxyphenyl)prop-2-enoic acid
InChIKey
YTFVRYKNXDADBI-SNAWJCMRSA-N
SMILES
COC1=CC(=CC(=C1OC)OC)/C=C/C(=O)O
Synonyms (36)
- 3,4,5-TRIMETHOXYCINNAMIC ACID
- 3,4,5-Trimethoxy cinnamate
- 3,4,5-methoxy-cinnamic acid
- 3,5-Trimethoxycinnamic acid
- Cinnamic acid,4,5-trimethoxy-
- O-Methylsinapate
- O-Methylsinapic acid
- SINAPIC ACID METHYL ETHER
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