Benzidine Back Catalog number: 43124 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9747.10-100-ME Ecgonine methyl ester, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. Price on request 58015 Phosphorus (P) Price on request 3356.14-100-CY 4,4'-DDD (=TDE), 100µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 72-54-8 Price on request