WS Herbicides Back Catalog number: 38030 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8706.12-100-IO 2,2',3,4,4',5',6-Heptachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 52663-69-1 Price on request EPA-23IS Internal Standard Solution, 1.2ml, nonane Price on request 9232.20-100-IO Ethyltriphenyltin-d15 (triphenyl-d15), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request