Verification II Standard 1

2-(4-[Methylthio]phenyl)-1H-benzimidazole, neat, Solvent-neat, Unit 10MG, # of units-21, Cas.no. 725701-22-4

Monophenyltin trichloride, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-5, Cas.no. 1124-19-2

2-(2-Chlorophenoxy)propionic acid, 100mg