3,4,5-Trimethoxy-trans-cinnamic acid

(E)-3,4,5-三甲氧基肉桂酸

Also known as: (2E)-3-(3,4,5-Trimethoxyphenyl)acrylic acid, (E)-3-(3,4,5-Trimethoxyphenyl)acrylic acid, (E)-3-(3,4,5-Trimethoxyphenyl)propenoic acid, (E)-6,7,8-trimethoxycinnamic acid, 2-Propenoic acid, 3-(3,4,5-trimethoxyphenyl)-, (2E)-, 3,4,5-Trimethoxycinnamic acid, 3,4,5-Trimethoxycinnamic_acid, 3-(3,4,5-Trimethoxyphenyl)acrylic acid, 3-(3,4,5-trimethoxyphenyl)prop-2-enoic acid, AKOS BBS-00000775, O-Methylsinapic acid, OTAVA-BB BB7119152925, RARECHEM BK HC T328, trans-3,4,5-Trimethoxycinnamic acid, Cinepazide Impurities4, Cinepazide Impurities1390

3,4,5-Trimethoxy-trans-cinnamic acid (CAS 20329-98-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H14O5 and a molecular weight of 238.237 g/mol. It is also known as (2E)-3-(3,4,5-Trimethoxyphenyl)acrylic acid, (E)-3-(3,4,5-Trimethoxyphenyl)acrylic acid and (E)-3-(3,4,5-Trimethoxyphenyl)propenoic acid. Key properties include a melting point of 125-127ºC(lit.), a boiling point of 396.4±37.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 151.5±20.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

20329-98-0

Jingsj CID

J-1973403-7

Molecular Formula

C₁₂H₁₄O₅

Chinese Name

(E)-3,4,5-三甲氧基肉桂酸

Molecular Weight

238.237 g/mol

Category

Organic Acids

Last updated

8/21/2026