16837-52-8 1H,5H,10H-Dipyrido(2,1-f:3',2',1'-ij)(1,6)naphthyridin-10-one, dodecahydro-, 4-oxide, (4R,7aS,13aR,13bR,13cS)- Matridin-15-one, 1-oxide, (1-beta)- Matrine 1beta-oxide Matrine N-oxide Matrine oxide Matrine, 1-oxide Oxymatrine