3,3´-Dimethoxybenzidine, certified, 0.1g Back Catalog number: C12721000 Availability: In the manufacturer's stock Price on request - + Recommended 2497.16-K-IO Tetra-n-butyltin, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1461-25-2 Price on request 79149 4,4’-DDE Price on request 50182 Mix #1 Price on request