Fenthion, 100 µg/ml, Ethyl acetate, 5ml

Valproic acid, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 99-66-1

(±)-trans-11-Nor-9-carboxy-delta-9-THC, 1000µg/ml in MeOH, 1ml

Caffeine-13C3, 5mg