Parent Compound
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Name CAS Molecular Formula Molecular Structure cyclopentadiene 542-92-7 C5H6 
cyclopentene 142-29-0 C5H8 
cyclopentane 287-92-3 C5H10 
furan 110-00-9 C4H4O 
thiophene 110-02-1 C4H4S 
pyrrole 109-97-7 C4H5N 
pyrazole 288-13-1 C3H4N2 
imidazole 288-32-4 C3H4N2 
1,2,3-triazole 288-36-8 C2H3N3 
1,2,4-triazole 288-88-0 C2H3N3 
1,2,5-triazole 288-35-7 C2H3N3 
1,3,4-triazole C2H3N3 
1,2,3,4-tetrazole 288-94-8 CH2N4 
1,2,3,5-tetrazole 100043-29-6 CH2N4 
isoxazole 288-14-2 C3H3NO 
oxazole 288-42-6 C3H3NO 
1,2,3-oxadiazole C2H2N2O 
1,2,4-oxadiazole 288-90-4 C2H2N2O 
1,3,4-oxadiazole 288-99-3 C2H2N2O 
furazan 288-37-9 C2H2N2O 
1,2,3,5-oxatriazole CHN3O 
1,2,3,4-oxatriazole CHN3O 
1,3,2-dioxazole C2H3NO2 
3H-1,2,3-dioxazole C2H3NO2 
1,2,3,4-dioxadiazole CH2N2O2 
1,2,3,5-dioxadiazole CH2N2O2 
1,3,2,4-dioxadiazole CH2N2O2 
1,3,4,5-dioxadiazole CH2N2O2 
1,2,3,4-trioxazole CHNO3 
1,2-thiazole 288-16-4 C3H3NS 
 






























