80022-21-5 Naphtho[2,3-g]quinoxaline-5,12-dione,5a,6,7,8,9,10,11,11a-octahydro- 80022-23-7 Naphtho[2,3-g]quinoxaline-5,12-dione,5a,6,7,8,9,10,11,11a-octahydro-2,3-diphenyl- 80022-27-1 Naphtho[2,3-g]quinoxaline-5,12-diol,6,7,8,9,10,11-hexahydro-2,3-diphenyl-, diacetate (ester)