Y 1430 (OTTO) Yttrium(III) chloride, hydrate, 99.99% Cas 12741-05-8 - used as a precursor for the synthesis of yttrium oxide nanocrystallites. It employs in the crystal structure determination of macromolecules such as proteins. Y 1430 (OTTO) Yttrium(III) chloride, hydrate, 99.99% Cas 12741-05-8 - used a precursor for the synthesis of optically active crystals and as a starting material for the synthesis of polymerization catalysts.