Heptachlor epoxide (Isomer B), 50mg

2-Perfluorohexyl-[1,2-13C2]-ethanoic acid (6:2), 50µg/ml in Isopropanol, 1,2ml

n-Nonadecane, ?13C: -34.60, 150ug/ml, Solvent-cyclohexane, Unit 1mL, # of units-10, Cas.no. 629-92-5

Carvedilol-d4 (ethyl-d4), 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1133705-56-2