Squaric acid

CAS Registry Number®

2892-51-5

CAS Name

Squaric acid

Molecular Formula

C4H2O4

Molecular Mass

114.06

Cite this Page

Squaric acid.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=2892-51-5 (retrieved 2024-11-24) (CAS RN: 2892-51-5).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    300 °C (decomp)

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C4H2O4/c5-1-2(6)4(8)3(1)7/h5-6H

InChIKey

InChIKey=PWEBUXCTKOWPCW-UHFFFAOYSA-N

SMILES

O=C1C(=O)C(O)=C1O

Canonical SMILES

O=C1C(=O)C(O)=C1O

Other Names for this Substance

  • 3-Cyclobutene-1,2-dione, 3,4-dihydroxy-
  • Cyclobutenedione, dihydroxy-
  • 3,4-Dihydroxy-3-cyclobutene-1,2-dione
  • Quadratic acid
  • Squaric acid

View All

Deleted or Replaced CAS Registry Numbers

25910-93-4, 94592-78-6, 2957929-39-2

CAS INSIGHTSTM
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