D8-Benzidine, 10mg Back Catalog number: 681504 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 70555 Bioallethrin (d-trans Allethrin) Price on request 19394 EPA Method 8021B Internal Standard Price on request 2217.16-100-IO 1-Nitropyrene-d9, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 93487-20-8 Price on request