Testosterone

n-Undecane-d24, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 164858-54-2

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

4-Nitrophenol-d4, 1000µg/ml in MeOH, 1ml