CAS Registry Number®
71-30-7
CAS Name
Cytosine
Molecular Formula
C4H5N3O
Molecular Mass
111.10
Compound Properties
-
Melting Point (1)
322.5 °C (decomp)
Source(s)
- (1) PhysProp data were obtained from Syracuse Research Corporation of Syracuse, New York (US)
Other Names and Identifiers
InChI
InChI=1S/C4H5N3O/c5-3-1-2-6-4(8)7-3/h1-2H,(H3,5,6,7,8)
InChIKey
InChIKey=OPTASPLRGRRNAP-UHFFFAOYSA-N
SMILES
NC=1NC(=O)N=CC1
Canonical SMILES
O=C1N=CC=C(N)N1
Other Names for this Substance
- 2(1H)-Pyrimidinone, 6-amino-
- 2(1H)-Pyrimidinone, 4-amino-
- Cytosine
- 6-Amino-2(1H)-pyrimidinone
- 4-Amino-2-hydroxypyrimidine
- 4-Amino-2-oxo-1,2-dihydropyrimidine
- 4-Amino-2(1H)-pyrimidinone
- Cytosinimine
- 4-Aminouracil
- NSC 27787
- 4-Amino-1H-pyrimidin-2-one
- Cytosines
- 2-Hydroxy-4-pyrimidinamine
- MeSH ID: D003596
Deleted or Replaced CAS Registry Numbers
504-05-2, 14987-28-1, 26661-23-4, 66322-75-6, 66398-98-9, 66460-16-0, 66460-17-1, 80275-67-8, 88733-25-9, 118511-36-7, 149297-78-9, 918399-36-7, 1268833-99-3
