2,2’,4,4’-Tetrachlorobiphenyl Back Catalog number: 63047 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 13570-10AC5 Siloxanes - Mix 8, 10µg/ml in Acetone, 5ml Price on request 90124 Aroclor 1221 Price on request ZA22100100CY Toxaphene Mix 1, 1 ng/µl, 1ml Price on request