4-Hydroxybenzoic acid, 1000µg/mL in MeOH, 1ml

Parathion-ethyl, 100 µg/ml, Toluene, 1ml

Naphtho[8,1,2-hij]hexaphene, Please inquire, Solvent-, Unit , # of units-, Cas.no. 196-27-0

2-Nitrotoluene, 250mg