Pentalene
Cyclopenta[c]pyrrole(8CI,9CI)
Pyrrolo[3,4-c]pyrrole
1H,3H-Thieno[3,4-c]thiophene(7CI,8CI,9CI)
Cyclopenta[b]pyrrole(8CI,9CI)
Pyrrolo[3,4-b]pyrrole
Cyclopentapyrazole(8CI,9CI)
Furo[3,4-d]isoxazole(8CI,9CI)
Thieno[3,4-b]thiophene
selenofen[3,4-b]selenofen
Pyrrolo[2,3-b]pyrrole
Pyrazolo[3,4-c]pyrazole(8CI,9CI)
6H-Thieno[2,3-b]pyrrole
Furo[2,3-b]furan
CAS-NEI
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