瑞波西利杂质21 货号:R023021 英文名:Ribociclib Impurity 21 同义词:3-(4-(cyclopentylamino)pyrimidin-5-yl)prop-2-yn-1-ol CAS号:N/A 分子式:C12H15N3O 分子量:217.27 询价订购