3,3’-Dimethylbenzidine Back Catalog number: 90898 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 94450 Pesticide Standard Price on request 94788 Multi-Component Standard Price on request 9904.18-100-ME 17a-Estradiol, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 57-91-0 Price on request