5-Bromo-2-hydroxypyridine-3-carbonitrile

5-Bromo-2-hydroxypyridine-3-carbonitrile is PubChem’s Title for CID 7204870 and CAS 405224-22-8. The molecular formula is C6H3BrN2O. PubChem publishes SMILES C1=C(C(=O)NC=C1Br)C#N and InChIKey SWTLLSLCDHXNIU-UHFFFAOYSA-N. Its synonym list explicitly includes the former “5-bromo-3-cyano-2-hydroxypyridine” order.

The preferred Title locates hydroxy at pyridine position 2, the carbonitrile carbon at position 3, and bromine at position 5. The carbonitrile contributes one carbon and one nitrogen, while the ring supplies the second nitrogen. Bromine bonds directly to the aromatic framework. PubChem’s IUPAC field renders the standardized graph as 5-bromo-2-oxo-1H-pyridine-3-carbonitrile. That oxo notation and the hydroxy Title are connected within the same CID; the catalog SMILES and InChI match PubChem exactly, so no unresolved tautomer identity remains. The exact InChI fixes the standardized hydrogen and carbonyl placement. Formula C6H3BrN2O represents one component with no counterion and no encoded stereochemistry.

When preparing an inquiry, cite CAS 405224-22-8 and the PubChem Title shown here. Provide the quantity under consideration, contact details, and any identity-document question. CID 7204870 or InChIKey SWTLLSLCDHXNIU-UHFFFAOYSA-N can accompany a structure-based message and preserves the standardized tautomer record. Rlavie can associate those identifiers with the intended entry. Keeping all three locants visible also separates it from other bromohydroxypyridine carbonitriles that may share the same elemental formula.