EU Trademark Classification EU01 Chemicals 氯甲醚（2308） Class 01 Chloromethyl ether 2308 氯甲醚 Chinese 氯甲醚 English Chloromethyl ether Site ref. 2308 Class 01 Included in Harmonised Database (HDB), TM5 ID List, WIPO Madrid Goods and Services (MGS)