2,3,3',4,4',5'-Hexachlorobiphenyl (157) Back Catalog number: 68157 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended X9110 Fluorene Price on request XA10230000AL Amitraz, 100µg/mL in Acetonitrile, 1ml Price on request 34005 EPA Method 502/524 Fortification Solution Price on request