1,1,1-Trichloroethane

Chloroxuron, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 1982-47-4

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

EPA Method 548.1 Internal Standard