Diltiazem hydrochloride,1000 µg base/mL,acetonitrile,1mL,

2,3-Diaminobiphenyl 2HCl, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no.

Methidathion, 100 µg/ml, Toluene, 1ml

CLP Semi-Volatile Acid Surrogate Standard