4-Ethoxy-3-methoxyphenylacetic acid

4-乙氧基-3-甲氧基苯乙酸

Also known as: 2-(4-ethoxy-3-methoxyphenyl)acetic acid, 2-(4-ethoxy-3-methoxy-phenyl)acetic acid, 2-(4-ethoxy-3-methoxy-phenyl)ethanoic acid, 4-Ethoxy-3-methoxybenzeneacetic acid, Apremilast Impurity 129, Benzeneacetic acid, 4-ethoxy-3-methoxy-, RARECHEM AL BO 0342, MFCD00016831

4-Ethoxy-3-methoxyphenylacetic acid (CAS 120-13-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H14O4 and a molecular weight of 210.22600 g/mol. It is also known as 2-(4-ethoxy-3-methoxyphenyl)acetic acid, 2-(4-ethoxy-3-methoxy-phenyl)acetic acid and 2-(4-ethoxy-3-methoxy-phenyl)ethanoic acid. Key properties include a melting point of 122-124°C, a boiling point of 344.1ºC at 760 mmHg, a density of 1.159 g/cm3 and a flash point of 132ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

120-13-8

Jingsj CID

J-45899-5

Molecular Formula

C₁₁H₁₄O₄

Chinese Name

4-乙氧基-3-甲氧基苯乙酸

Molecular Weight

210.22600 g/mol

Category

Organic Acids

Last updated

8/21/2026