Synonyms: [1]Benzothieno[3,2-e]-1,2,4-triazolo[4,3-c]pyrimidine, 8,9,10,11-tetrahydro-;7,8,9,10-Tetrahydro-1,2,3a,5-tetraaza-6-thiacyclopenta[c]fluorene;7,8,9,10-Tetrahydro-6-thia-1,2,3a,5-tetraaza-cyclopenta[c]fluorene;8,9,10,11-Tetrahydro[1]benzothieno[3,2-e][1,2,4]triazolo[4,3-c]pyrimidine