Isonorweberine
5,6,7,8-Tetramethoxyisoquinoline
 12670  C13H15NO4  249.263
 InChI=1S/C13H15NO4/c1-15-10-8-5-6-14-7-9(8)11(16-2)13(18-4)12(10)17-3/h5-7H,1-4H3
 XNGIPVCATKSQEC-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 COc1c(OC)c(OC)c2c(c1OC)cncc2