delta-HCH, certified, 50mg

GC-IRMS Standards (C11(?13C: -26.11); C15 (?13C: -30.22); C20 (?13C: -33.06)), 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no.

1,cis-2,trans-4-Trimethylcyclohexane

2,3,4,4',6-Pentachlorobiphenyl ,100 µg/mL,isooctane,1mL,