Internal Standard for AB SIM Back Catalog number: 94541 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2975.4-100 Acephate, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 30560-19-1 Price on request 3742.12-100-IO 2,3,4,4',5,6-Hexachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 41411-63-6 Price on request 11759.12-100-IO 2,2',3,3',4,6,6'-Heptachlorobiphenyl,100 µg/mL,isooctane,1mL, Price on request