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

11H-Perfluoroundecanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1765-48-6

3,3'-Difluorodiphenyl ether, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1800-48-2

Fenchlorphos-oxon, 100 µg/ml, Acetonitrile, 1ml