Certificate Of Analysis
Product Name Phentolamine methanesulfonate salt,
≥98% (TLC), powder
Product Number P7561
Product Brand SIGMA
CAS Number 65-28-1
Molecular Formula C17H19N3O · CH3SO3H
Molecular Weight 377.46
 
TEST SPECIFICATION LOT 043K3710 RESULTS
APPEARANCE WHITE TO WHITE WITH A FAINT YELLOW CAST POWDER WHITE POWDER
SOLUBILITY CLEAR COLORLESS TO LIGHT YELLOW SOLUTION AT 200 MG PLUS 4 ML OF WATER CLEAR FAINT YELLOW
IR SPECTRUM CONSISTENT WITH STRUCTURE
ELEMENTAL ANALYSIS 56.5 TO 58.1% CARBON 10.8 TO 11.4% NITROGEN 57.1% CARBON 11.1% NITROGEN
PURITY BY THIN LAYER CHROMATOGRAPHY NOT LESS THAN 99% 99%
PRODUCT CROSS REFERENCE INFORMATION REPLACEMENT FOR ALDRICH #361658
QC RELEASE DATE JUNE 2003