QC Standard 3

(±)-Sotalol-d7 hydrochloride (iso-propyl-d7)

2-Ethoxyethyl acetate, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 111-15-9

Sulfur Calibration Mixtures: Di-n-butyl sulfide in Heavy White Oil (less than 20mg/kg S) Unit : 10mL screw-capped bottle Light White Mineral Oil Heavy White Mineral Oil (20 cSt at 40°C) (70 cSt at 40°C)