Cloxacillin sodium salt hydrate, 250mg

Heptachlor, 10µg/mL in Cyclohexane, 10ml

1-Phenylnaphthalene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 605-02-7

4,4'-Dichlorobenzophenone, 100 µg/ml, Acetonitril