cytosine

Cytosine A pyrimidine base that is a fundamental unit of nucleic acids.

[1. A pyrimidine found in nucleic acids.

Molecular Formula: C₄H₅N₃O

InChI: InChI=1/C4H5N3O/c5-3-1-2-6-4(8)7-3/h1-2H,(H3,5,6,7,8)/f/h7H,5H2

InChIKey: InChIKey=OPTASPLRGRRNAP-PTAWIYCUCW
SMILES: C1=C(NC(=O)N=C1)N

Names:
    cytosine
    2(1H)-Pyrimidinone, 4-amino-
    4-amino-3H-pyrimidin-2-one

Registries:
    PubChem CID 597
    PubChem ID 10390008