F221635 CytosineCLASS: N-heterocyclic / Monocyclic / 6-membered / Aromatic COMPOUND: 355 KEGG: 46 NCI: 309 ENZYME: 12 (Show enzyme(s)) RELATED: 4 F221612 Dihydrocytosine F221633 Pyrimidine F221636 Thymine F221637 Uracil