Spectinomycin sulfate hydrate, certified, 0.1g

(2RS)-2-(4-Ethylphenyl)propanoic acid, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 3585-52-2

PCN Extraction Standard Solution, 1.2mL, nonane

Pyrazophos, 10.0 µg/ml, Ethyl acetate, 10ml