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

1,2,8-Trimethylphenanthrene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 20291-75-2

Acetophenone, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 98-86-2

pH 8.0 Standard @ 25°C