3-Hexyne-2,5-diol3031-66-1100 % similar 3-Butyn-2-ol2028-63-950 % similar (S)-(-)-1-Butyn-3-ol2914-69-450 % similar (+)-1-Butyn-3-ol42969-65-350 % similar 3-Butyn-2-ol65337-13-550 % similar Lactonitrile78-97-750 % similar (+)-2,3-Butanediol19132-06-031 % similar (2R,3R)-Butanediol24347-58-831 % similar 2,3-Butanediol513-85-931 % similar