beta-HCH, 10.0 µg/ml, Ethyl acetate, 10ml

1H-1,2,4-Triazole-3,5-13C2, 5mg

Perfluoro-n-[13C9]nonanoic acid, 50µg/ml in MeOH, 1,2ml

3-Chloro-1,2-propandiol-1-monobehenate-d5, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no.