Metoprolol (free base),neat,neat,50mg,

3,5-Dimethyl-d6-phenol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-5, Cas.no. 133504-75-8

California Gas Additive Standard

4,4''-Dinitro-p-terphenyl, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 3282-11-9