2,2’,3,3’,4,5-Hexachlorobiphenyl (129) Back Catalog number: 66129 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 91161 EPA Method 525 Internals & Surrogates Price on request P280255 2-Pentylidenecyclohexanone, 1g Price on request 679136 Metolachlor deschloro, 100 µg/ml, Acetonitrile, Price on request