左旋氧氟沙星羧酸

Product name

Levofloxacin Carboxylic Acid

Other name

Levofloxacin Q-Acid; (S)-9, 10-DIFLUORO-3-METHYL-7-OXO-2,3-DIHYDRO-7H-PYRIDO (1,2,3-DE) 1,4-BENZOXAZINE-6-CARBOXYLIC ACID 

CAS NO.

100986-89-8

M.F.

C₁₃H₉F₂NO₄

M.W

281.21200

Structure

EINECS

923-011-0

Chemical Properties

Melting point

>300℃ 

Density

1.61

Boiling point

459.2 at 760 mmHg

Flash point

93.6ºC

Safety information

Not dangerous goods

Package

Net weight

25KG/drum

Product name

(S)-9,10-DIFLUORO-3-METHYL-7-OXO-2,3-DIHYDRO-7H-PYRIDO (1,2,3-DE) 1,4-BENZOXAZINE-6-CARBOXYLIC ACID   (LEVOFLOXACIN Q-ACID) 

TESTS

SPECIFICATION

RESULTS

Identification

HPLC

Conform

 Characteristics

Almost White to light yellow crystalline powder

Conform

 LVF40-I

≤1.0

0.57

LVF40-II

≤1.0

0.11

LVF40-III

≤0.2

0.18

Max Simple Impurity%

≤0.5

0.36

Residue%

≤0.5

0.16

Total Impurity%

≤2.0

1.64

Assay%

≥98.0

98.57

Conclusion: Conform