Penicillin G Potassium Salt, 250mg

(13C12)Isodrin, 1.2mL x 100ug/mL, nonane

Benzaldehyde 2,4-dinitrophenylhydrazone, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no.

Benzo[a]pyrene-d12,400µg/mL,cyclohexane,1mL,