CAS 2265903-15-7 is the registry number for Ruthenium, [1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene]dichloro[2-[5-[(dimethylamino)sulfonyl]-2-(1-methylethoxy-κO)phenyl]ethylidene-κC]-, 98+%. Offered by: Chemat Brand. Available pack sizes: on request.