Cytosine (C4H5N3O)

cytosine presents a C4 framework, aromatic rings (formula C4H5N3O, CAS 71-30-7). ChemicalHelper Reaction can propose ranked disconnections for cytosine from the SMILES Nc1ccnc(=O)[nH]1.

Target: Cytosine
CAS: 71-30-7
Formula: C4H5N3O
Approx. MW: 111.10
SMILES: Nc1ccnc(=O)[nH]1
PubChem CID: 597
Approx. carbons: C4

Cytosine structure

Properties

Molecular weight: 111.10

View on PubChem

Cytosine 1H / 13C NMR spectrum →

FAQ

What is the chemical formula of Cytosine?

Cytosine has molecular formula C4H5N3O. Molecular weight about 111.10 g·mol⁻¹.

What is the CAS number of Cytosine?

The CAS Registry Number for Cytosine is 71-30-7.

Run AI retrosynthesis for Cytosine Target catalog AI tools overview

Open the planner with Cytosine preloaded, then keep routes that match CAS 71-30-7.

Related targets

Similar compounds

1-Methyl-1H-pyrazole 1-methylimidazole 2-Amino-5-bromopyrimidine 2-Chloropyrazine 2-Chloropyrimidine 2-Chlorothiophene

Browse the full target catalog

References & tools

ChemicalHelper Reaction — AI retrosynthesis with optional library evidence.
PubChem — compound identifiers and structure depictions (NIH/NCBI).
Related: AiZynthFinder / synthesis planning literature for computer-aided retrosynthesis.