Perchlorate Level 2 Back Catalog number: 59340 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70120 Dibromochloromethane Price on request 4M163 2,3,3',4',5,6-Hexachloro-4-methoxybiphenyl, 1.2ml x 50ug/ml, nonane Price on request 10198.24-50-AN JWH-018 N-(5-Hydroxypentyl) metabolite, 50µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 335161-21-2 Price on request