2-Methyl-5,6-dihydro-4H-pyran-3-carboxylic acid

2-甲基-5,6-二氢-4H-吡喃-3-羧酸

Also known as: 3,4-Dihydro-6-methyl-2H-pyran-5-carboxylic acid, 6-Methyl-3,4-dihydro-2H-pyran-5-carboxylic acid, 2H-Pyran-5-carboxylic acid, 3,4-dihydro-6-methyl-, 6-Methyl-3,4-dihydro-2H-pyran-5-carboxylic acid

2-Methyl-5,6-dihydro-4H-pyran-3-carboxylic acid (CAS 5399-21-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H10O3 and a molecular weight of 142.15200 g/mol. It is also known as 3,4-Dihydro-6-methyl-2H-pyran-5-carboxylic acid, 6-Methyl-3,4-dihydro-2H-pyran-5-carboxylic acid and 2H-Pyran-5-carboxylic acid, 3,4-dihydro-6-methyl-. Key properties include a melting point of 119ºC, a boiling point of 243.7ºC at 760mmHg, a density of 1.194g/cm3 and a flash point of 100ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

5399-21-3

Jingsj CID

J-851583-0

Molecular Formula

C₇H₁₀O₃

Chinese Name

2-甲基-5,6-二氢-4H-吡喃-3-羧酸

Molecular Weight

142.15200 g/mol

Category

Organic Acids

Last updated

8/21/2026