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 673246 Demeton-S-methyl, 10.0 µg/ml, Acetonitrile, 10ml Price on request 674540 D4-Picolinafen, 10.0 µg/ml, Acetonitrile, 10ml Price on request 71135 p-Toluidine Price on request