PAH-Mix 9, 10µg/mL in Cyclohexane, 5 x 1ml

2,3',4',5-Tetrachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Piperacillin

(±)-Verapamil-d3 hydrochloride (N-methyl-d3) ,1000 µg base/mL,MeOH,1mL