Oxygen-fluorine acid

CAS NO.：82419-35-0
Empirical Formula: C13H9F2NO4
Molecular Weight: 281.21
MDL number: MFCD00226106
EINECS: 700-160-8
SAFETY DATA SHEET (SDS)
Update Date: 2025-07-24 18:13:54

What is Oxygen-fluorine acid?

Chemical properties

Grey-Yellow Powder

The Uses of Oxygen-fluorine acid

Ofloxacin intermediate

The Uses of Oxygen-fluorine acid

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.

What are the applications of Application

9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid 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

Properties of Oxygen-fluorine acid

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)
form	neat
pka	4.87±0.40(Predicted)
color	Off-White
BRN	4202751
CAS DataBase Reference	82419-35-0(CAS DataBase Reference)

Safety information for Oxygen-fluorine acid

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.