Synonyms: (1,3-Dimesityl-2-imidazolidinylidene)(o-isopropoxyphenylmethylene)rutheniumdichloride;Grubbs-Hoveyda catalyst;Hoveyda II catalyst;Hoveyda catalyst;Hoveyda-Grubbs catalyst;Hoveyda-Grubbs catalyst 2nd. generation;Hoveyda-Grubbs second generation catalyst;Second-generation Hoveyda catalyst;[1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene]dichloro(o-isopropoxyphenylmethylene)ruthenium;[1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene]dichloro[[2-(1-methylethoxy-kO)phenyl]methylene-kC]ruthenium;