Certificate Of Analysis
Product Name (±)-Lorazepam
Product Number L1764
Product Brand SIGMA
CAS Number 846-49-1
Molecular Formula C15H10Cl2N2O2
Molecular Weight 321.16
 
TEST SPECIFICATION LOT 035F0115 RESULTS
APPEARANCE WHITE POWDER WHITE POWDER
SOLUBILITY CLEAR TO VERY SLIGHTLY HAZY COLORLESS SOLUTION AT 250 MG PLUS 5 ML OF METHANOL CLEAR COLORLESS SOLUTION AT 50 MG/ML IN METHANOL
ELEMENTAL ANALYSIS 54.7 TO 57.5% CARBON 8.4 TO 9.1% NITROGEN 57.4% CARBON 8.8% NITROGEN
IR SPECTRUM CONSISTENT WITH STRUCTURE CONSISTENT WITH STRUCTURE
PURITY BY THIN LAYER CHROMATOGRAPHY > OR = 98% GREATER THAN 99%
QC RELEASE DATE NOVEMBER 2003