EPA Method 551 - Disinfection By-Products

1,2,3-Trichlorodibenzo-p-dioxin,50 µg/mL,n-nonane,1mL,

(S)-(+)-Pregabalin

(24S)-24-Ethyl-3,5-cyclocholest-22-ene, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.