pH 12.0 Standard @ 25°C

9-cis-Eicosenoic acid , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.

Vardenafil hydrochloride trihydrate, certified, 0.1g

N,O-Bis(trimethylsilyl)trifluoroacetamide, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 25561-30-2