1748-43-2 2-Ethyl-1,2,3,4-tetrahydro-2-methylisoquinolinium p-toluenesulfonate EINECS 217-133-7 Tosilate de trethinum [INN-French] Tosilato de tretinio [INN-Spanish] Trethinii tosilas [INN-Latin] Trethinium tosilate Trethinium tosilate [INN] Trethinium tosylate