乙酸基 Traditional form: 乙酸基 Pinyin (reading): yǐsuānjī Definitions: acetyl radical CH3COO- Characters: 乙 - second; 2nd heavenly stem 酸 - tart, sour; spoiled; acid 基 - foundation, base Traditional characters: 乙 - second; 2nd heavenly stem 酸 - tart, sour; spoiled; acid 基 - foundation, base