4H,5H,6H,7H-thieno[3,2-c]pyridine hydrochloride4,5,6,7-Tetrahydrothieno[3,2-c]pyridine hydrochloride4,5,6,7-Tetrahydrothieno[3,2-c]pyridine Hydrochloride6,7-Dihydro-4H-thieno[3,2-c]pyridine Hydrochloride4,5,6,7-四氢二噻吩基[3,2-c]盐酸吡啶4,5,6,7-Tetrahydrothieno[3,2-c]pyridine hydrochloride