Paraben-Mix 1, 100 µg/ml, Methanol, 5ml

Hydroxytolbutamide-d9 (butyl-d9),neat,neat,10mg

(+)-Oxymatrine, 25mg

N,O-Diacetyl-4-aminophenol, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 2633-33-8