Color Back Catalog number: 54355 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended L11202000CY trans-Chlordane (gamma), 10 µg/mL in CY, 10ml Price on request 66189 2,3,3',4,4',5,5'-Heptachlorobiphenyl (189) Price on request 675644 Propetamphos, 10.0 µg/ml, Ethyl acetate, 10ml Price on request