[13C3]-Melamine, 1.2ml x 100ug/ml, water

N-Nitrosoethyl-n-propylamine

17-Hydroxypregnenolone, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 387-79-1

Butachlor, 100 µg/ml, Methanol, 1ml