Eglish name: Oxygen-fluorine acid

English alias: AURORA 21894;AKOS BBS-00001807;9,10-DIFLUORO-2,3-DIHYDRO-3-METHYL-7-OXO-7H-PYRIDO[1,2,3-DE]-1,4-BENZ-OXAZINE-6-CARBOXYLIC ACID;9,10-difluoro-2,3-dihydro-3-methyl-7-oxo-7h-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxyllic acid;9,10-DIFLUORO-3-METHYL-7-OXO-2,3-DIHYDRO-7H-[1,4]OXAZINO[2,3,4-IJ]QUINOLINE-6-CARBOXYLIC ACID;OXYGEN-FLUORINE ACID;OTAVA-BB BB0111050010;9,10-Difluoro-3-Methyl-7-Oxo-2,3-Dihydro 7-H-Pyrido-1,2,3-DE]-1,4-Benzoxyazine-6-Carboxylic Acid

CAS number: 82419-35-0

Formula: C13H9F2NO4

Molecular weight: 281.21

Melting point: 320-322 °C(lit.)

Boiling point: 459.2°C at 760 mmHg

Flash point: 231.5°C

Appearance: white powder

Application: ainly used for ofloxacin Synthesis & Synthesis of ofloxacin intermediate