35977-63-0
3',6'-Dihydro-4',5'-dimetylspiro(fluoren-9,2'-[2H]thiopyran)-1'-oxid
→
23339-04-0
2,3-dimethylfluoranthene
+
74249-97-1
4-(9H-fluoren-9-yl)-2,3-dimethylbut-2-enal