5-Amino-2-[2-(4-nitro-2-sulfophenyl)vinyl]benzenesulfonic acid(CAS: 119-72-2)

5-Amino-2-[2-(4-nitro-2-sulfophenyl)vinyl]benzenesulfonic acid is a crystalline solid with a molecular weight of approximately 425.12 g/mol. It has a low solubility in water (1.4 g/L) and is highly reactive towards nucleophiles. The compound shows good reactivity towards electrophiles and can undergo sulfonation and nitration reactions.

5-Amino-2-[2-(4-nitro-2-sulfophenyl)vinyl]benzenesulfonic acid is typically synthesized via a multi-step process involving nitration, sulfonation, and coupling reactions. The key steps include the formation of the nitrophenyl group, followed by the sulfonation of the phenolic hydroxyl group, and finally, the coupling reaction with the vinyl group.

5-Amino-2-[2-(4-nitro-2-sulfophenyl)vinyl]benzenesulfonic acid is used in the pharmaceutical industry for the synthesis of drug intermediates, in the polymer industry for the production of functionalized polymers, and in the chemical sensor industry for the development of selective chemical sensors.

When handling 5-Amino-2-[2-(4-nitro-2-sulfophenyl)vinyl]benzenesulfonic acid, it is essential to wear protective equipment such as gloves, safety goggles, and a lab coat. Work should be conducted in a fume hood to minimize inhalation risks. Spills should be handled with appropriate absorbents, and the area should be thoroughly cleaned with water. Always consult the Safety Data Sheet (SDS) for detailed safety information.