Metformin hydrochloride, 100 µg/ml, Methanol, 1m

Sodium Nitrate as Nitrate [NO3]

Tetramethylammonium bromide, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 64-20-0

Didodecyldimethylammonium bromide, 100mg