1-Phenyl-2-propyn-1-one 2-Propyn-1-one, 1-phenyl- (9CI) 3-Oxo-3-phenylpropyne 3623-15-2 Benzoylacetylene Ethyne, benzoyl- Ethynyl phenyl ketone NSC 140267 Phenyl ethynyl ketone Propiolophenone (8CI) Propioloylbenzene Propynophenone