Dimethoate, 100 µg/ml, Acetonitrile, 5ml

n-Heneicosane, ?13C: -28.59, 150ug/ml, Solvent-cyclohexane, Unit 1mL, # of units-10, Cas.no. 629-94-7

trans-Urocanic acid, 100mg

Tripropyl phosphate, 100µg/ml in Toluene, 1ml