1-Methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

1-甲基-4-氧代-1,4-二氢喹啉-3-羧酸

Also known as: 1-Methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid, 1-METHYL-4-OXO-1,4-DIHYDRO-QUINOLINE-3-CARBOXYLIC ACID, 1,4-dihydro-1-methyl-4-oxoquinoline-3-carboxylic acid, 1-methyl-4-oxo-1,4-dihydro-3-quinolinecarboxylic acid, 1-methyl-4-oxohydroquinoline-3-carboxylic acid, 1-methyl-4-oxoquinoline-3-carboxylic acid, 1-methyl-4-quinolone-3-carboxylic acid, 4-keto-1-methyl-quinoline-3-carboxylic acid, 1-methyl-3-quinolinecarboxylic acid-4-one, 1-methyl-4-oxo-1,4-dihydro-chinolin-3-carbonsaeure, 3-quinolinecarboxylic acid, 1,4-dihydro-1-methyl-4-oxo-, AKOS BBS-00008756, AURORA 18013, CHEMBRDG-BB 4401867, OTAVA-BB BB0109360031, OTAVA-BB 0109360031, TIMTEC-BB SBB011037

1-Methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 18471-99-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H9NO3 and a molecular weight of 203.19400 g/mol. It is also known as 1-METHYL-4-OXO-1,4-DIHYDRO-QUINOLINE-3-CARBOXYLIC ACID, 1,4-dihydro-1-methyl-4-oxoquinoline-3-carboxylic acid and 1-methyl-4-oxo-1,4-dihydro-3-quinolinecarboxylic acid. Key properties include a boiling point of 345.9ºC at 760 mmHg, a density of 1.378g/cm3 and a flash point of 163ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

18471-99-3

Jingsj CID

J-1493635-1

Molecular Formula

C₁₁H₉NO₃

Chinese Name

1-甲基-4-氧代-1,4-二氢喹啉-3-羧酸

Molecular Weight

203.19400 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026