Demeton-S-methyl-sulfoxide, 100 µg/ml, Toluene,

PCB No. 55, 100µg/ml in Isooctane, 1ml

Metoprolol (free base), 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 51384-51-1

DL-Propranolol hydrochloride, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 318-98-9