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Formulas which begin with C21H28N
All formulas are in Hill order.
- C21H28NO7 (Senecionanium, 12-(acetyloxy)-14,15,20,21-tetradehydro-15,20-dihydro-8-hydroxy-4-methyl-11,16-dioxo-, (8ξ,12β,14Z)-)
- C21H28N2______ (13 species)
- C21H28N4 (1,1'3,3',5,5'6,6'-Octamethyl-2,2'-spiro[2,3-dihydro-1H-benzimidazole)