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 79630 Bifenthrin, 1000µg/ml in Acetonitrile, 1ml Price on request 677144 tert-Butyl ethyl ether, 200 µg/ml, Methanol, 1ml Price on request 678241 4-Epichlortetracycline hydrochloride, 5mg Price on request