Metformin hydrochloride

2-Aminonaphthalene-d7, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 93951-94-1

4-Methylheptane, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 589-53-7

2,3,4-Tribromophenol, 1.2ml x 100ug/ml, toluene