WS Disinfection By-Products - Cal Check 4

Hexachlorophene, 250mg

2,3-Dimethylnaphthalene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 581-40-8

Chloroform-13C,2000 µg/mL,MeOH,1mL,