. . "experimental"@en . . . . . "7,8-DICHLORO-1,2,3,4-TETRAHYDROISOQUINOLINE"@en . . . . . . . . . . . . . . . . . . . . "Kenneth G. Holden, Carl D. Perchonock, \"Method for preparing 7,8-dichloro-1,2,3,4-tetrahydroisoquinoline.\" U.S. Patent US4200754, issued February, 1976."@en . . . . . . . . . .