Retention Time Verification Standard

Tetrasul, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 2227-13-6

Donepezil hydrochloride,neat,neat,10mg,

2-Methylpropane, 10mg/mL in N,N-dimethylacetamide, 2ml