Squaric acid

Squaric acid CAS 2892-51-5, also known as quadratic acid, is a highly stable organic dicarboxylic acid with a unique four-membered ring conjugated structure. It is a white crystalline solid with strong acidity, good water solubility and excellent chemical reactivity. Squaric acid CAS 2892-51-5 is widely recognized in the chemical industry for its stable molecular structure and derivatization performance, and it is an important fine chemical intermediate for synthesis and industrial production.

Squaraine acid, Quadratic acid, 3,4-Dihydroxy-3-cyclobutene-1,2-dione, Cyclobutenedione dihydroxy

2917190090

1. Fine Chemical Intermediate Synthesis: Squaric acid CAS 2892-51-5 is a core intermediate for synthesizing various squarate derivatives, including metal squarates and organic conjugated compounds. It is widely used in the preparation of high-value fine chemicals and supports customized synthesis of special chemical raw materials. 2. Dye and Pigment Manufacturing: Squaric acid CAS 2892-51-5 can undergo condensation reaction with aromatic amines and other compounds to synthesize squaraine dyes. These dyes have excellent light absorption and stability, and are widely applied in industrial pigment production and functional dye processing. 3. Pharmaceutical Intermediate Production: Squaric acid CAS 2892-51-5 is used in the synthesis of pharmaceutical intermediates for anti-inflammatory, antibacterial and targeted therapeutic drugs. Its special ring structure improves the biological activity of drug molecules, meeting the precision production needs of the pharmaceutical chemical industry. 4. Material Science Research and Production: Squaric acid CAS 2892-51-5 is applied in the preparation of conductive materials, optical functional materials and polymer additives. It can optimize the structural stability and functional properties of new chemical materials, suitable for industrial material modification and laboratory R&D.

98% Min

C4H2O4

114.05

Store at 2-8°C, keep sealed, dry and away from light and oxidizing substances

2 years under proper storage

White crystalline powder

Industrial Grade, Reagent Grade

1.78 g/cm3

293 °C (dec.)