Aroclor 1221 Back Catalog number: 79403 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675959 1-(3,4-Dichlorophenyl)urea, 10 µg/ml, Acetonitril Price on request 677752 Bis(methylglycol) phthalate, 250mg Price on request 3104.12-50-IO 2,2',5,6'-Tetrabromobiphenyl, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 60044-25-9 Price on request