36438-97-8 4-23-00-00981 (Beilstein Handbook Reference) BRN 0131438 Quinoxaline, 1,2,3,4-tetrahydro-1-methyl- Quinoxaline, 1,2,3,4-tetrahydro-4-methyl- Quinoxaline, 1-methyl-1,2,3,4-tetrahydro-