恶喹酸EP杂质C 货号:O037003 英文名:Oxolinic Acid EP Impurity C 同义词:5-methyl-8-oxo-5,8-dihydro-[1,3]dioxolo[4,5-g]quinoline-7-carboxylic acid CAS号:14205-66-4 分子式:C12H9NO5 分子量:247.20 询价订购