4-Hydroxy-2(1H)-pyridinone

CAS Registry Number®

626-03-9
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CAS Name

4-Hydroxy-2(1H)-pyridinone

Molecular Formula

C5H5NO2

Molecular Mass

111.10

Cite this Page

4-Hydroxy-2(1H)-pyridinone.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=626-03-9 (retrieved 2024-07-05) (CAS RN: 626-03-9).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    278 °C

Source(s)

  • (1) PhysProp data were obtained from Syracuse Research Corporation of Syracuse, New York (US)

Other Names and Identifiers

InChI

InChI=1S/C5H5NO2/c7-4-1-2-6-5(8)3-4/h1-3H,(H2,6,7,8)

InChIKey

InChIKey=ZEZJPIDPVXJEME-UHFFFAOYSA-N

SMILES

OC1=CC(=O)NC=C1

Canonical SMILES

O=C1C=C(O)C=CN1

Other Names for this Substance

  • 2(1H)-Pyridinone, 4-hydroxy-
  • 2,4-Pyridinediol
  • 2(1H)-Pyridone, 4-hydroxy-
  • 4-Hydroxy-2(1H)-pyridinone
  • 2,4-Dihydroxypyridine

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Deleted or Replaced CAS Registry Numbers

29212-34-8