CAS 849830-54-2 appears in our catalog under these names: Platinum, [1,3-bis[2,6-bis(1-methylethyl)phenyl]-1,3-dihydro-2H-imidazol-2-ylidene][1,3-bis(η2-ethenyl)-1,1,3,3-tetramethyldisiloxane]- 99%, [1,3-BIS(2,6-DIISOPROPYLPHENYL)IMIDAZOL&, [1,3-Bis[2,6-bis(1-methylethyl)phenyl]-1,3-dihydro-2H-imidazol-2-ylidene][1,3-bis(η2-ethenyl)-1,1,3,3-tetramethyldisiloxane]platinum, 99%, 99%. Offered by: Ambeed, Sigma-Aldrich, Chemat. Available pack sizes: 100mg, 250mg, 1g, 5g.