Cytosine synonyms

2(1H)-Pyrimidinone, 4-amino-; 4-Amino-2(1H)-pyrimidinone; Cytosinimine; CYTOSINE; 4-Amino-2-hydroxypyrimidine; Cyt


Graphical representations:


View large 3D structure

Molecular Formula: C4H5N3O

Natural Isotopic Abundance Mass: 111.102

Mono-Isotopic Molecular Masses:

  • C12N14: 111.0432617982
  • C13N14: 115.0566811494
  • C12N15: 114.0343664778
  • C13N15: 118.0477858290

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

PubChem Compound (CID): 597
KEGG Compound ID: C00380
CAS Registry number: 118511-36-7 14987-28-1 26661-23-4 504-05-2 66322-75-6 71-30-7
ChEBI: 16040
EINECS: 200-749-5
NSC: 27787
PDB Compound ID: CYT

Reference data were obtained primarily from the PubChem database.

Three dimensional molecular rendering uses Jmol.

InChI string and atom numbering calculated using ALATIS (Hesam Dashti, William M. Westler, John L. Markley, Hamid R. Eghbalnia, "Unique identifiers for small molecules enable rigorous labeling of their atoms", Scientific Data 4, Article number: 170073 (2017), doi:10.1038/sdata.2017.73,