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 98554 Formaldehyde (0.5 ppm) Price on request L17300000AL Terbuthylazine, 10 ng/µl, 10ml Price on request 2369.6-K-IO Catechol, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 120-80-9 Price on request