(±)-N-Allylnormetazocine hydrochloride, analytical standard

DL-Norvaline, analytical standard

L-Leucine hydrochloride 100 mM amino acid in 0.1 M HCl, analytical standard

Enalapril maleate, analytical standard

Trifluoroacetic Acid, analytical standard

Trifluoroacetic Acid, analytical standard

Trifluoroacetic Acid, analytical standard

4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanol, analytical standard

Pentachloroethane, analytical standard (Supelco)

Pentachloroethane 5000 µg/mL in Methanol, analytical standard (Supelco)