2,2',3,3',4,5,6'-Heptachlorobiphenyl (174) Back Catalog number: 66174 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended XA11600100AC Chlorpyrifos-D10, 100µg/mL in Acetone, 1ml Price on request 19179 Toxaphene Price on request 30104 EPA Method 551.1 Performance Check Soln Price on request