13C LABELED PCB MIXTURE PCBS-77/101/141/178 10UG/ML IN NONANE

2-Methylbenzofuran, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 4265-25-2

trans-Nonachlor, 10µg/mL in Cyclohexane, 10ml

Chlorodifluoromethane