Benzobicyclon, 100 µg/ml, Acetonitrile, 1ml

17ß-Estradiol-2,4,16,16-d4, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 66789-03-5

EPA Method 8121 Analytes, 1000µg/ml in HE:TO [1:1], 1ml

Metformin hydrochloride, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 1115-70-4