L-Histidine hydrochloride monohydrate, 250mg

Dibenzo(a,i)pyrene

2-(Phenylthio)thiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 16718-12-0

O,O-Diethylthiophosphate, sodium salt, 1000µg/ml in MeOH, 1ml