|  | |  |  | Oxygen-fluorine acid Basic information | 
 | Product Name: | Oxygen-fluorine acid |  | Synonyms: | 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;AURORA 21894;AKOS BBS-00001807;OXYGEN-FLUORINE ACID;OTAVA-BB BB0111050010;9,10-Difluoro-2,3-Dihydro-3-Methyl-7-Oxo-7h-Pyroido(1,2,3-De)(1,4)Benzoxazine-6-Carboxylic Acid |  | CAS: | 82419-35-0 |  | MF: | C13H9F2NO4 |  | MW: | 281.21 |  | EINECS: | 700-160-8 |  | Product Categories: | Various Intermediates;Intermediates;Intermediates & Fine Chemicals;Pharmaceuticals;Benzoxazines;Building  Blocks;OFLOXACIN INTERMIDATE;Heterocyclic  Building  Blocks |  | Mol File: | 82419-35-0.mol |  |  | 
|  |  | Oxygen-fluorine acid Chemical Properties | 
 | Melting point | 320-322 °C (lit.) |  | Boiling point | 459.2±45.0 °C(Predicted) |  | density | 1.61±0.1 g/cm3(Predicted) |  | storage temp. | 2-8°C |  | solubility | DMSO (Slightly, Heated) |  | pka | 4.87±0.40(Predicted) |  | form | neat |  | color | Off-White |  | BRN | 4202751 |  | CAS DataBase Reference | 82419-35-0(CAS DataBase Reference) | 
| Hazard Codes | Xi |  | Risk Statements | 36/37/38 |  | Safety Statements | 26-36 |  | WGK Germany | 3 |  | HS Code | 29349990 | 
|  |  | Oxygen-fluorine acid Usage And Synthesis | 
 | Chemical Properties | Grey-Yellow Powder |  | Uses | 9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid (Ofloxacin EP Impurity A) is an Ofloxacin intermediate. |  | General Description | (S)-(-)-9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid may be used in the preparation of the following: 
 kynurenine aminotransferase II (KAT II) inhibitor, [(S)-(-)-9-(4-aminopiperazine-1-yl)-8-fluoro-3-methyl-6-oxo-2,3,5,6-tetrahydro-4H-1-oxa-3a-aza-phenalene-5-carboxylic acid]fused-ring derivativesN-desmethyllevofloxacin
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|  |  | Oxygen-fluorine acid Preparation Products And Raw materials | 
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