Beryllium7440-41-7100 % similar Beryllium hydride7787-52-2100 % similar Beryllium boride (beb2)12228-40-950 % similar Beryllium selenide (bese)12232-25-650 % similar Beryllium telluride12232-27-850 % similar Beryllium oxide1304-56-950 % similar Beryllium sulfide13598-22-650 % similar Beryllium carbide506-66-150 % similar