5-Ethyl-1,2-dihydro-3H-pyrazol-3-one

CAS Registry Number®

110475-21-3
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CAS Name

5-Ethyl-1,2-dihydro-3H-pyrazol-3-one

Molecular Formula

C5H8N2O

Molecular Mass

112.13

Cite this Page

5-Ethyl-1,2-dihydro-3H-pyrazol-3-one.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=110475-21-3 (retrieved 2024-09-07) (CAS RN: 110475-21-3).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    190 °C

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C5H8N2O/c1-2-4-3-5(8)7-6-4/h3H,2H2,1H3,(H2,6,7,8)

InChIKey

InChIKey=OBTFNIOWJJRVQV-UHFFFAOYSA-N

SMILES

C(C)C1=CC(=O)NN1

Canonical SMILES

O=C1C=C(NN1)CC

Other Names for this Substance

  • 3H-Pyrazol-3-one, 5-ethyl-1,2-dihydro-
  • Pyrazol-3(or 5)-ol, 5(or 3)-ethyl-
  • 5-Ethyl-1,2-dihydro-3H-pyrazol-3-one
  • 3-Ethyl-1H-pyrazol-5-ol

Deleted or Replaced CAS Registry Numbers

21918-08-1, 2170796-98-0