Dimethyl sulfoxide Back Catalog number: 72629 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 63171 2,2',3,3',4,4',6-Heptachlorobiphenyl (171) Price on request 9657.12-100-IO 2,3',4',5',6-Pentachlorobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 74472-39-2 Price on request 677222 Tetrachloroethene, 1000 µg/ml, Methanol, 1ml Price on request