4-23-00-01053 (Beilstein Handbook Reference) 5',6',7',8'-Tetrahydrodispiro(cyclohexane-1,2'(3'H)-quinazoline-4',1''(4a'H)-cyclohexane) 53378-71-5 BRN 0019723 Dispiro(cyclohexane-1,2'(3'H)-quinazoline-4'(4'aH),1''-cyclohexane), 5',6',7',8'-tetrahydro- Dispiro(cyclohexane-1,2'(3'H)-quinazoline-4',1''(4a'H)-cyclohexane), 5',6',7',8'-tetrahydro-