2,2',3,4,4',5-Hexachlorobiphenyl (137) Back Catalog number: 66137 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677483 Methyl valerate, 1ml Price on request 677435 7-Hydroxy-1,3-naphthalenedisulfonic acid dipotassi Price on request 9438.9-100-AN Atraton Price on request