Ethyl 6,8-difluoro-1-(formylmethylamino)-7-(4-methyl-1-piperazinyl)-4-oxo-1,4-dihydroquinoline-3-carboxylate

6,8-二氟-1-(甲酰基甲基氨基)-7-(4-甲基-1-哌嗪基)-4-氧代-1,4-二氢喹啉-3-甲酸乙酯

Also known as: 6,8-Difluoro-1-(formylmethylamino)-1,4-dihydro-7-(4-methyl-1-piperazinyl)-4-oxo-3-quinolinecarboxylic acid ethyl ester, 6,8-Difluoro-1-(N-methylformamido)-7-(4-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ethyl ester, Ethyl 6,8-difluoro-1,4-dihydro-1-(N-methylformamido)-7-(4-methyl-1-piperazinyl)-4-oxo-3-quinolinecarboxylate, 3-Quinolinecarboxylic acid, 6,8-difluoro-1-(formylmethylamino)-1,4-dihydro-7-(4-methyl-1-piperazinyl)-4-oxo-, ethyl ester, Marbofloxacin cyclized ester, Marbofloxacin intermediate

Ethyl 6,8-difluoro-1-(formylmethylamino)-7-(4-methyl-1-piperazinyl)-4-oxo-1,4-dihydroquinoline-3-carboxylate (CAS 158585-86-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C19H22F2N4O4 and a molecular weight of 408.39900 g/mol. It is also known as 6,8-Difluoro-1-(formylmethylamino)-1,4-dihydro-7-(4-methyl-1-piperazinyl)-4-oxo-3-quinolinecarboxylic acid ethyl ester, 6,8-Difluoro-1-(N-methylformamido)-7-(4-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ethyl ester and Ethyl 6,8-difluoro-1,4-dihydro-1-(N-methylformamido)-7-(4-methyl-1-piperazinyl)-4-oxo-3-quinolinecarboxylate. Key properties include a boiling point of 543.7ºC at 760 mmHg and a density of 1.41. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

158585-86-5

Jingsj CID

J-1603902-1

Molecular Formula

C₁₉H₂₂F₂N₄O₄

Chinese Name

6,8-二氟-1-(甲酰基甲基氨基)-7-(4-甲基-1-哌嗪基)-4-氧代-1,4-二氢喹啉-3-甲酸乙酯

Molecular Weight

408.39900 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026