WS Disinfection By-Products - Cal Check 4

D4-Quinoxyfen, 5mg

Dibenz[a,h]anthracene-d14, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 13250-98-1

alpha alpha alpha (20S)-Cholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 41083-75-4