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 X9190 Styrene Price on request 71245 1-Bromo-2-chloroethane Price on request 19066 CLP - Purgeable Organic Matrix Spiking Solution Price on request