菜单目录
品名:维生素B12别名:维生素B12,氰钴胺;维生素B12/氰钴胺素/钴胺素; 甲钴胺英文名称:VitaminB12CAS号:68-19-9分子式:C63H88CoN14O14P分子量:1355.37EINECS号:200-680-0熔点:>300°C比旋光度:23656-59±9°(dilaqsoln)沸点:>300°C闪点:9℃储存条件:2-8°C溶解度:Sparinglysolubleinwaterandinethanol(96percent),practicallyinsolubleinacetone.Theanhydroussubs tanceisveryhygroscopic.酸度系数:(pKa)pKa3.28±0.04(H2O,D2Ot=23±0.5Iunspeci?ed)(Uncertain)外观:红色粉末