Heptachlor-endo-epoxide (trans-, isomer A), 10µg/ml in CY, 10ml

Ethyl propanoate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 105-37-3

Terbutryn-d5 (ethyl-d5), 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 1219804-47-3

n-Tetracontane, ?13C: -27.05, 150ug/ml, Solvent-cyclohexane, Unit 1mL, # of units-10, Cas.no. 4181-95-7