rac-6-Fluoro-3,4-dihydro-2H-1-benzopyran-2-carboxylic Acid Ethyl Ester;Ethyl 6-Fluoro-3,4-dihydro-2H-1-benzopyran-2-carboxylate;
陕西缔都医药化工有限公司
联系商家时请提及chemicalbook,有助于交易顺利完成!
ZL