Pharmaceutical Reference Standards / Impurity Standards

DL-alpha-Lipoic Acid
Thioctic Acid rac-Lipoic Acid Monosulfoxide
5-(1,1-Dioxido-1,2-dithiolan-3-yl)pentanoic Acid
5-((1R)-1-oxo-1,2-dithiolane-3-yl)valeric acid
Thioctic Acid EP Impurity A
Thioctic Acid EP Impurity B
Lipoic Acid