EU Trademark Classification EU01 Chemicals Toluenesulfonyl chloride Class 01 Toluenesulfonyl chloride 5157 甲苯磺酰氯 Chinese 甲苯磺酰氯 English Toluenesulfonyl chloride Spanish cloruro de toluenosulfonilo Site ref. 5157 Class 01 Included in Harmonised Database (HDB), TM5 ID List