2,4-Diphenyl-2-hydroxy-3-butynal oxime 3-Butynal, 2,4-diphenyl-2-hydroxy-, oxime 730-98-3 BRN 2621941 Ossima del 2,4-difenilbutin-3-ol-2-ale-1 [Italian] Oxime of 2,4-diphenylbutyne-3-ol-2-al-1