CAS 855517-60-1 appears in our catalog under these names: (1,3-Dimesitylimidazolidin-2- ylidene)copper(III) chloride, 97%, 97%, (1,3-Dimesitylimidazolidin-2-ylidene)copper(III) chloride, 95%. Offered by: Chemat, Ambeed. Available pack sizes: 100mg, 250mg, 1g, 5g.