Sitagliptin, 100µg/ml in Acetonitrile, 5ml

1,2,4-Trimethylbenzene, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 95-63-6

n-Heneicosane-d44, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 39756-37-1

Heptachlor epoxide (isomer B), 1000µg/ml in MeOH, 1ml