1,2,3,4-tetrahydroacridin-9-amine hydrate hydrochloride 1,2,3,4-tetrahydroacridin-9-ylamine hydrate hydrochloride CAS-1684-40-8 NCGC00017035-01 SBB003134 Prestwick_733 Tacrine hydrochloride hydrate 9-Amino-1,2,3,4-tetrahydroacridine hydrochloride hydrate A3773_SIGMA THA hydrochloride hydrate Tetrahydroaminacrine hydrochloride hydrate A79922_ALDRICH