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Thermo Scientific Chemicals
3,4-Dihydroxy-3-cyclobutene-1,2-dione, 98+%
CAS: 2892-51-5 | C4H2O4 | 114.056 g/mol
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Catalog number A15169.14
also known as A15169-14
Price (USD)
202.65
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Quantity:
25 g
Price (USD)
202.65
Online Exclusive
225.00Save 22.35 (10%)
Each
Chemical Identifiers
CAS2892-51-5
IUPAC Namedihydroxycyclobut-3-ene-1,2-dione
Molecular FormulaC4H2O4
InChI KeyPWEBUXCTKOWPCW-UHFFFAOYSA-N
SMILESOC1=C(O)C(=O)C1=O
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Specifications
Specification Sheet
Specification SheetFormPowder or lumps
Identification (FTIR)Conforms
Appearance (Color)White to cream to pale brown to gray
Assay (Aqueous acid-base Titration)≥98.0 to ≤102.0%
3,4-Dihydroxy-3-cyclobutene-1,2-dione is used to produce diethoxy-cyclobutenedione by heating, pharmaceutical intermediates, squarylium dyes, and photoconducting squaraines; The dibutylester is used as a contact sensitizer in the treatment of alopecia and warts.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
Applications
3,4-Dihydroxy-3-cyclobutene-1,2-dione is used to produce diethoxy-cyclobutenedione by heating, pharmaceutical intermediates, squarylium dyes, and photoconducting squaraines; The dibutylester is used as a contact sensitizer in the treatment of alopecia and warts.
Solubility
Soluble in water.
Notes
Keep container tightly closed. Store in cool, dry conditions in well sealed containers.
3,4-Dihydroxy-3-cyclobutene-1,2-dione is used to produce diethoxy-cyclobutenedione by heating, pharmaceutical intermediates, squarylium dyes, and photoconducting squaraines; The dibutylester is used as a contact sensitizer in the treatment of alopecia and warts.
Solubility
Soluble in water.
Notes
Keep container tightly closed. Store in cool, dry conditions in well sealed containers.
RUO – Research Use Only
General References:
- MacLean, E.J.; Wheatley, P.S Ferguson, G.; Glidewell, C. Self-templating of large rings by small rings in 4,4'-bipyridyl-3,4-dihydroxy-3-cyclobutene-1,2-dione (2/3). Acta Cryst. 1999, 55, 1892-1896.
- Semmingsen, D.; Hollander, F.J.; Koetzle, T.F. A neutron diffraction study of squaric acid (3,4-dihydroxy-3-cyclobutene-1,2-dione). J. Chem. Phys. 1977, 66, 4405.
- Interesting dibasic acid, readily forming salts, acid chloride, esters, amides, etc. Esters of squaric acid have been used to synthesize chiral bioisosteres for the amino acid functionality: J. Org. Chem., 57, 6896 (1992).
- For reviews of squaric acid and its derivatives, see: Synthesis, 1, 649, 869 (1978); 961 (1980). See also: J. Chem. Soc., Perkin 1, 263 (1993).