... ,7-Tetrahydrothieno[3,2,c] pyridine hydrochloride CAS NO: 28783-41-7 4,5,6,7-Tetrahydrothieno[3,2,c] pyridine ... hydrochlorideCAS NO: 28783-41-74,5,6,7-Tetrahydrothieno[3,2,c] pyridine hydrochlorideIdentificationName ... Molecular Formula C7H9NS.HClMolecular Weight 161.6CAS Registry Number 28783-41-7 Properties Melting point 212-215 ºC(DEC)