4,6-Diethoxy-1-(2,3-diethoxyphenyl)isoquinoline hydrochloride 4549 R.P. Chlorhydrate de (diethoxy-2,3 phenyl)-1 diethoxy-5,6 isoquinoleine [French] Isoquinoline, 4,6-diethoxy-1-(2,3-diethoxyphenyl)-, hydrochloride NW7524200