WS Disinfection By-Products - Cal Check 2

Cephapirin benzathine, 100mg

Dibenzo[bc,ef]coronene, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 190-31-8

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