PRODUCT NAME: Levofloxacin EP Impurity B
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	LEF-007
Lot Number	Sample COA
Batch Quantity	Sample COA
CAS Number	117707-40-1
Mol. Formula	C17H18FN3O4
Molecular Wt	347.34
Long Term Storage Condition	store at 2-8°C	Handling instruction	Sample COA
IUPAC	(2S)-7-fluoro-2-methyl-10-oxo-6-piperazin-1-yl-4-oxa-1-azatricyclo[7.3.1.05,13]trideca-5(13),6,8,11-tetraene-11-carboxylic acid
Chemical Name	Levofloxacin EP Impurity B
Synonyms	Levofloxacin Piperazine Impurity; (S)-9-Fluoro-3-methyl-7-oxo-10-(1-piperazinyl)-2,3-dihydro-7H-pyrido[1,2,3-de][1,4]-benzoxazine-6-carboxylic Acid; Desmethyl Levofloxacin; Desmethyl Levofloxacin

Test	Results
Appearance	Off White Powder
Identification by 1H NMR	Sample COA
Identification By IR	Sample COA
Mass (ESI)	Sample COA
Purity	98%
Wt. Loss by TGA	Sample COA
% Potency	Sample COA
Solubility	ethanol, DMSO, dimethyl formamide (DMF)
QC Release Date	Sample COA
Attachments	Sample COA
Note: This material can be used as a referance standard and is for research purpose ONLY and not for human consumption