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3,4-Dihydroxy-3-cyclobutene-1,2-dione

ALDRICH/123447 - ≥99.0% (HPLC)

Synonym: Squaric acid

CAS Number: 2892-51-5
Empirical Formula (Hill Notation): C4H2O4
Molecular Weight: 114.06
EC Number: 220-761-4
MDL Number: MFCD00001334
Linear Formula: (HO)2C4(=O)2
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-123447-5G 5 g
 $67.50
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45-123447-25G 25 g
 $209.00
1/EA		 Add To Favorites
45-123447-100G 100 g
 $757.00
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assay ≥99.0% (HPLC)
form solid
InChI 1S/C4H2O4/c5-1-2(6)4(8)3(1)7/h5-6H
InChI key PWEBUXCTKOWPCW-UHFFFAOYSA-N
mp >300 °C (lit.)
Quality Level 200 
SMILES string OC1=C(O)C(=O)C1=O
Application: 3,4-Dihydroxy-3-cyclobutene-1,2-dione can be used:
• In fluorescence detection in immunoassays, hybridization assays, enzymatic reactions, and other analytical procedures.
• To form diffraction quality crystals.
• To synthesize a squarate dianion, which is used as a building block to create uncharged polymeric networks. These ordered structures are used in catalysis, nonlinear optics, electrical conductivity, molecular recognition, and molecular sieves.
General description: 3,4-dihydroxy-3-cyclobutene-1,2 dione, commonly known as squaric acid, is widely used in bioorganic and medicinal chemistry. It is an inhibitor of glyoxylase, semiqauric acid, pyruvate dehrogenase, and transketolase. It is used as a replacement for phosphate in a peptide-based ligand for an SH2 domain. Its derivatives are high-affinity ligands for excitatory amino acid receptors. These derivatives are also used as dyes for fluorescence detection of small biological molecules.
Packaging: 25, 100 g in poly bottle
Packaging: 5 g in glass bottle
Purity ≥99.0% (HPLC)
mp >300 °C (lit.)
UNSPSC 12352103

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