Methamidophos, 1000µg/ml in MeOH, 1ml

9-Fluoro-5-methylchrysene, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 64977-46-8

Heptachlor, 100µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 76-44-8

2,4-Dihydroxybenzoic Acid, >95%, 500mg