Benzidine Back Catalog number: 79151 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675781 Resmethrin, 100 µg/ml, Ethyl acetate, 5ml Price on request 71210 cis-Piperylene Price on request 11816.7-K-IO 2-Ethynyl-3-methylpyrazine,1000 µg/mL,isooctane,1mL, Price on request