替吉奥杂质B 货号:T022002 英文名:Tegafur Impurity B 同义词:5-methoxy-1-(tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione CAS号:N/A 分子式:C9H12N2O4 分子量:212.20 询价订购