Bis(p-chlorophenyl) sulfone,1000 µg/mL ,MeOH,1mL,

Heptachlor

N-Nitroso-di-n-hexylamine, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 6949-28-6

d4 C29 alpha alpha alpha (20R)-Ethylcholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no.