基本信息：中文名称 4-氧代四氢-2H-硫代吡喃-3-羧酸乙酯 1,1-二氧化物英文名称 Ethyl 4-oxotetrahydro-2H-thiopyran-3-carboxylate 1,1-dioxide英文别名 ethyl 1,1,4-trioxothiane-3-carboxylate;CAS号 889946-17-2欧盟海关编码(HS-code)：29349990概述（Summary）：29349990. Other nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds. General tariff:6.5%.
