Ethyl 3-(3,4,5-trimethoxyphenyl)propionate

Also known as: Ethyl 3,4,5-trimethoxyphenylpropionate, Benzenepropanoic acid, 3,4,5-trimethoxy-, ethyl ester, Ethyl 3-(3,4,5-trimethoxyphenyl)propanoate, 3,4,5-Trimethoxybenzenepropionic acid ethyl ester, 3-(3,4,5-Trimethoxyphenyl)propionic acid ethyl ester, EINECS 274-553-3, MFCD00017522

Ethyl 3-(3,4,5-trimethoxyphenyl)propionate (CAS 70311-20-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H20O5 and a molecular weight of 268.30600 g/mol. Key properties include a boiling point of 351ºC at 760 mmHg, a density of 1.085g/cm3 and a flash point of 151.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 70311-20-5
Jingsj CID: J-25109-2
Molecular Formula: C₁₄H₂₀O₅
Molecular Weight: 268.30600 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	351ºC at 760 mmHg
Density	1.085g/cm3
Flash Point	151.8ºC
Exact Mass	268.13100
PSA	53.99000
LogP	2.20810
Refractive Index	1.49

Customs & Trade Information

HS Code	2918990090
Summary	2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Ethyl 3-(3,4,5-trimethoxyphenyl)propionate?

The CAS number of Ethyl 3-(3,4,5-trimethoxyphenyl)propionate is 70311-20-5.

What are the molecular formula and molecular weight of Ethyl 3-(3,4,5-trimethoxyphenyl)propionate?

Ethyl 3-(3,4,5-trimethoxyphenyl)propionate has molecular formula C14H20O5 and molecular weight 268.30600 g/mol.

What are the upstream and downstream products of Ethyl 3-(3,4,5-trimethoxyphenyl)propionate?

For Ethyl 3-(3,4,5-trimethoxyphenyl)propionate, Upstream Products: Meldrum's acid, 3,4,5-Trimethoxybenzaldehyde, 3,4,5-Trimethoxycinnamic acid ethyl ester; Downstream Products: 3-(3,4,5-Trimethoxyphenyl)propanoic acid, 2-Amino-5-[(3,4,5-trimethoxyphenyl)methyl]-1H-pyrimidin-4-one.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Ethyl 3-(3,4,5-trimethoxyphenyl)propionate (CAS 70311-20-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-25109-2 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.