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 70420 N-Nitrosodi-n-butylamine Price on request C580002 Clindamycin-d3 Hydrochloride, 0,5mg Price on request 675433 Pyridaphenthion, 100mg Price on request