维生素B12杂质A 货号:V032001 英文名:Vitamin B12 Impurity A 同义词:Cyanocobalamin EP Impurity A;10,13-Imino-4,20:9,6:18,15-trinitrilo-6H-cyclononadeca[b]furan, cobinic acid-abdeg-pentamide deriv CAS号:23208-66-4 分子式:C63H85CoN13O15P 分子量:1354.33 询价订购