Hexavalent Chromium (Cr 6+)

3-Nitroamino-1-propanol, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no.

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

3,3'-Dimethoxybenzidine,100 µg/mL,acetonitrile,1mL,