👉 The compound is a 1838. (2-Oxo-2-phenylethyl)(triphenyl)phosphaniumato 3-carboxyprop-2-enoatato, with molecular weight of 676256-62-5. 1838. (2-Oxo-2-phenylethyl)(triphenyl)phosphaniumato 3-carboxyprop-2-enoatato; 676256-62-5