Premafloxacin

沛马沙星

Also known as: permafloxacin, 1-cyclopropyl-6-fluoro-8-methoxy-7-[(3R)-3-[(1S)-1-(methylamino)ethyl]pyrrolidin-1-yl]-4-oxoquinoline-3-carboxylic acid, 3-Quinolinecarboxylic acid, 1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-7-[(3R)-3-[(1S)-1-(methylamino)ethyl]-1-pyrrolidinyl]-4-oxo-, 1-cyclopropyl-6-fluoro-8-methoxy-7-[3-(1-methylamino-ethyl)-pyrrolidin-1-yl]-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid, JB-1, Premafloxacin (USAN/INN), UNII-UOM2HMO524, Premafloxacin USP/EP/BP

Premafloxacin (CAS 143383-65-7) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C21H26FN3O4 and a molecular weight of 403.44700 g/mol. It is also known as permafloxacin, 1-cyclopropyl-6-fluoro-8-methoxy-7-[(3R)-3-[(1S)-1-(methylamino)ethyl]pyrrolidin-1-yl]-4-oxoquinoline-3-carboxylic acid and 3-Quinolinecarboxylic acid, 1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-7-[(3R)-3-[(1S)-1-(methylamino)ethyl]-1-pyrrolidinyl]-4-oxo-. Key properties include a boiling point of 601.3ºC at 760mmHg, a density of 1.354g/cm3 and a flash point of 317.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

143383-65-7

Jingsj CID

J-1508019-4

Molecular Formula

C₂₁H₂₆FN₃O₄

Chinese Name

沛马沙星

Molecular Weight

403.44700 g/mol

Category

Organic Compounds

Last updated

8/21/2026