丙二醇 Traditional form: 丙二醇 Pinyin (reading): bǐng'èrchún Definitions: propylene glycol propane-1,2-diol C3H6(OH)2 Characters: 丙 - third; 3rd heavenly stem 二 - two; twice 醇 - rich, pure, as good as wine Traditional characters: 丙 - third; 3rd heavenly stem 二 - two; twice 醇 - rich, pure, as good as wine