2,2',3,3',4,5,6'-Heptachlorobiphenyl (174) Back Catalog number: 63174 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C10303000 L-(+)-Ascorbic acid, certified, 0.25g Price on request 94504 Hydrocortisone Price on request 10231.13-100MG 2-Phenylbenzimidazole-5-sulfonic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 27503-81-7 Price on request