8270 Supplemental Standard Back Catalog number: 94209 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11761.12-10-IO 2,2',3,4,4',5,6-Heptachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request 679879 4,4'-Diaminodiphenyl sulfide, 100 µg/ml, Acetonit Price on request X9100 Endosulfan I Price on request