Disodium 2,2'-[(E)-1,2-ethenediyl]bis{5-[(4-ethoxyphenyl)diazenyl]benzenesulfonate}(CAS: 2870-32-8)

Disodium 2,2'-[(E)-1,2-ethenediyl]bis{5-[(4-ethoxyphenyl)diazenyl]benzenesulfonate} is a crystalline compound with a high molecular weight. It has good solubility in organic solvents and poor solubility in water. Chemically, it is highly reactive, especially towards reducing agents, and exhibits azo group photoreactivity. This compound is stable under normal conditions but should be stored in a cool, dark place to preserve its integrity.

Disodium 2,2'-[(E)-1,2-ethenediyl]bis{5-[(4-ethoxyphenyl)diazenyl]benzenesulfonate} is synthesized by diazotization and coupling reactions of aromatic compounds with ethylenediamine. The reaction typically involves sodium nitrite in an aqueous medium, followed by coupling with the appropriate aromatic diazonium salt. The process requires careful control of pH and temperature to ensure high yield and selectivity.

Disodium 2,2'-[(E)-1,2-ethenediyl]bis{5-[(4-ethoxyphenyl)diazenyl]benzenesulfonate} is used in the pharmaceutical industry for its azo group photoreactivity, which can be applied in drug delivery systems and photodynamic therapy. It is also used in the semiconductor industry for doping and in the polymer industry for stabilizing materials. Additionally, it has applications in sensor technology for detecting specific analytes.

When handling Disodium 2,2'-[(E)-1,2-ethenediyl]bis{5-[(4-ethoxyphenyl)diazenyl]benzenesulfonate}, it is crucial to wear appropriate personal protective equipment (PPE), including gloves, goggles, and a lab coat. This compound should be used in a well-ventilated area or a fume hood due to its reactivity. Spills should be properly contained and cleaned up according to the safety data sheet (SDS) guidelines. Storage should be in a cool, dry place away from direct sunlight and heat sources.