2,3,3',4,4',5'-Hexachlorobiphenyl (157) Back Catalog number: 68157 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9450.4-100-AN Dalapon methyl ester Price on request 9417.16-50MG Venlafaxine hydrochloride Price on request 98113 Phenol Price on request