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 S-4382-K-5IP EPA 8041A Surrogate Standard S-4382 1mg/mL in isopropanol, 1 mL, 5 x 1mL, 5mL 2,4-Dibromophenol Price on request 681448 Iopromide, 100 µg/ml, Water, 1ml Price on request 680668 Trazodone hydrochloride, 1000mg Price on request