CAS 1383684-54-5 appears in our catalog under these names: (SP-5-31)-Bis(1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(3-phenyl-1H-inden-1-ylidene)ruthenium, 98%, Grubbs Catalyst? M800, GRUBBS CATALYST┬« M800, (SP-5-31)-Bis[1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene]dichloro(3-phenyl-1H-inden-1-ylidene)ruthenium, ≥99.95% metals basis, ≥99.95% metals basis. Offered by: AmBeed, GLPBio, Sigma-Aldrich, Chemat. Available pack sizes: 100mg, 25mg, 1G.