(-)-delta-9-THC, 10.0 µg/ml, Methanol, 1ml

Sulfur Standard 1 Unit: 10mL screw cap bottle Chiron No. Matrix: Methanol Compound Concentration S-4072 Diethyl sulfide 0.5 ppm (w/w) Di-n-butyl sulfide 0.5 ppm (w/w)

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

3,3'-Dichlorobenzidine, 10.0 µg/ml, Acetonitrile,