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Oxygen-fluorine acid

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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
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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)
color 
Off-White
BRN 
4202751
CAS DataBase Reference
82419-35-0(CAS DataBase Reference)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
WGK Germany 
3
HS Code 
29349990

MSDS

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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 derivatives
  • N-desmethyllevofloxacin

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