CAS 10361-91-8 appears in our catalog under these names: Ytterbium(III) chloride, ultra dry, 99.99% (REO) , Ytterbium(III) chloride, 35% min w/w aq. soln., 99.9% (REO) . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 5g, 25g, 50ml, 250ml, 1L.