21645-51-2 is the CAS No. of this Amorphous Aluminum Hydroxide Dried Gel, which is extensively used by medical research centers to formulate effective pharmaceutical drugs or medicines for varied medical conditions. It has Al2O3 content that varies between 47 to 60%. It is also called aluminic acid, aluminum III hydroxide, hydrated alumina, aluminic hydroxide, aluminum hydroxide, and Orth aluminic acid in the scientific terminology. The provided Amorphous Aluminum Hydroxide Dried Gel is formulated in white amorphous powder that has 300-degree Celsius melting point. This gel is alternatively dissolvable in H2SO4, HCL, and acidic solutions. In addition, it has less than 7 acidity value, making it easy and safe to use.