13C LABELED PCB MIXTURE PCBS-77/101/141/178 10UG/ML IN NONANE Back Catalog number: EC-4060 Availability: In the manufacturer's stock Price on request - + Recommended 677671 4,4'-Bis(a,a-dimethylbenzyl)diphenylamine, 250mg Price on request 678428 Heptachlor endo-epoxide, 100µg/ml, Acetonitrile, 5ml Price on request 94883 Benzo(a)pyrene Price on request