Internal Standards Mix 33, 2000 ng/µl, 1ml

Metformin hydrochloride, neat, Solvent-neat, Unit 5g, # of units-1, Cas.no. 1115-70-4

Cyanazine, 10 µg/ml, Acetonitrile, 10ml

4,4'-DDD, 100 µg/ml, Methanol, 1ml