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The Chemical Identity of 4-Hydroxypyridine: CAS 626-64-2 Explained

In the realm of chemical sourcing and research, a precise understanding of a compound's identity is fundamental. 4-Hydroxypyridine, identified by its CAS Number 626-64-2, is a significant heterocyclic compound with a range of applications in chemical synthesis. For R&D scientists and procurement managers, grasping its detailed chemical identity ensures they are sourcing the correct material for their needs. This article provides a comprehensive overview of the chemical identity of 4-Hydroxypyridine.

Key Identifiers for 4-Hydroxypyridine

The identity of a chemical substance is established through several key identifiers, ensuring clarity and avoiding confusion:

  • CAS Number: 626-64-2 is the unique numerical identifier assigned by the Chemical Abstracts Service (CAS) to this specific chemical substance.
  • Chemical Name: The primary IUPAC name is 1H-pyridin-4-one, reflecting its keto tautomeric form. It is also widely known as 4-Hydroxypyridine, 4-pyridinol, or 4-pyridone.
  • Molecular Formula: C5H5NO accurately represents the elemental composition of the molecule.
  • Molecular Weight: Approximately 95.10 g/mol, this value is crucial for stoichiometric calculations in synthesis.
  • Synonyms: Commonly used alternative names like 4-pyridinol, 4-pyridone, gamma-hydroxypyridine, and 4-oxopyridine aid in literature searches and cross-referencing.

Professionals often search for '4-hydroxypyridine synonyms' or 'CAS 626-64-2 molecular weight' to confirm details.

Structural Information and Tautomerism

4-Hydroxypyridine exhibits keto-enol tautomerism, existing in equilibrium between the enol form (4-hydroxypyridine) and the more stable keto form (4-pyridone). This equilibrium significantly influences its chemical behavior and reactivity. Understanding this aspect is vital for anyone looking to 'buy 4-hydroxypyridine' for precise chemical applications.

Sourcing and Quality Assurance

When procuring 4-Hydroxypyridine, it is essential to work with manufacturers who provide accurate and detailed identity information. A reputable 'pharmaceutical intermediates manufacturer' or 'fine chemical supplier' will always furnish this data, often including spectral information like 1H NMR or IR spectra, to confirm the substance's identity and purity. Ensuring you source from a reliable '4-hydroxypyridine manufacturer' means you receive material that precisely matches its documented chemical identity, guaranteeing successful outcomes in your synthesis projects.

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