WS Regulated VOCs Back Catalog number: 38022 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 66177 2,2',3,3',4',5,6-Heptachlorobiphenyl (177) Price on request 673881 Paraoxon-ethyl, 10 µg/ml, Cyclohexane, 10ml Price on request 679954 3,4-Dichloronitrobenzene, 250mg Price on request