3,4-Dihydro-2,2-dimethyl-4-oxo-2H-pyran-6-carboxylic acid

3,4-二氢-2,2-二甲基-4-氧代-2H-吡喃-6-羧酸

Also known as: 2,2-Dimethyl-4-oxo-3,4-dihydro-2H-pyran-6-carboxylic acid, 5,6-Dihydro-6,6-dimethyl-4-oxo-4H-pyran-2-carboxylic acid, 6,6-Dimethyl-4-oxo-5,6-dihydro-4H-pyran-2-carboxylic acid, 4-Oxo-6,6-dimethyl-5,6-dihydro-4H-pyran-2-carboxylic acid, 2H-Pyran-6-carboxylic acid, 3,4-dihydro-2,2-dimethyl-4-oxo-

3,4-Dihydro-2,2-dimethyl-4-oxo-2H-pyran-6-carboxylic acid (CAS 80866-93-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H10O4 and a molecular weight of 170.16300 g/mol. It is also known as 2,2-Dimethyl-4-oxo-3,4-dihydro-2H-pyran-6-carboxylic acid, 5,6-Dihydro-6,6-dimethyl-4-oxo-4H-pyran-2-carboxylic acid and 6,6-Dimethyl-4-oxo-5,6-dihydro-4H-pyran-2-carboxylic acid. Key properties include a melting point of 170ºC (dec.)(lit.), a boiling point of 259ºC at 760 mmHg, a density of 1.1456 (rough estimate) and a flash point of 102.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

80866-93-9

Jingsj CID

J-1308187-8

Molecular Formula

C₈H₁₀O₄

Chinese Name

3,4-二氢-2,2-二甲基-4-氧代-2H-吡喃-6-羧酸

Molecular Weight

170.16300 g/mol

Category

Organic Acids

Last updated

8/21/2026