beta-BHC Back Catalog number: 79285 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1635.20-2MG 1-/3-Nitrobenzo[a]pyrene, neat, Solvent-neat, Unit 2mg, # of units-1, Cas.no. 70021-99-7/70021-98-6 Price on request 59289 Metals Mix Price on request 50194 Arsenic (As) Price on request