Nitrite as NO2-

3-Perfluoropentyl propanoic acid (5:3), 50µg/ml in MeOH, 1,2ml

2-Hexanone

Theophylline-d6 (dimethyl-d6), 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 11790-39-8