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Benzenesulfonic acid, 2,2′-(1,2-ethenediyl)bis[5-[2-(3,4-dihydroxyphenyl)diazenyl]-, ammonium salt…

CAS 1571-36-4: Benzenesulfonic acid, 2,2′-(1,2-ethenediyl)bis[5-[2-(3,4-dihydroxyphenyl)diazenyl]-, ammonium salt (1:2)

Description:Benzenesulfonic acid, 2,2′-(1,2-ethenediyl)bis[5-[2-(3,4-dihydroxyphenyl)diazenyl]-, ammonium salt (1:2), commonly referred to by its CAS number 1571-36-4, is a complex organic compound characterized by its azo dye structure. This substance features a sulfonic acid group, which enhances its solubility in water, making it suitable for various applications in dyeing and as a pH indicator. The presence of the azo group (-N=N-) contributes to its vivid coloration, which is a hallmark of azo dyes, while the dihydroxyphenyl substituents provide additional reactivity and potential for further chemical modifications. The ammonium salt form indicates that it exists as a cationic species in solution, which can influence its interaction with other molecules and surfaces. This compound is often utilized in the textile industry, as well as in biological and chemical research, due to its ability to form stable complexes and its vibrant color properties. Safety and handling precautions are essential, as with many azo compounds, due to potential toxicity and environmental concerns.

Formula:C26H20N4O10S2·2H3N

InChI:InChI=1S/C26H20N4O10S2.2H3N/c31-21-9-7-17(11-23(21)33)27-29-19-5-3-15(25(13-19)41(35,36)37)1-2-16-4-6-20(14-26(16)42(38,39)40)30-28-18-8-10-22(32)24(34)12-18;;/h1-14,31-34H,(H,35,36,37)(H,38,39,40);2*1H3

InChI key:InChIKey=BTVLOQLIWTZBDD-UHFFFAOYSA-N

SMILES:O=S(=O)(O)C1=CC(N=NC2=CC=C(O)C(O)=C2)=CC=C1C=CC3=CC=C(N=NC4=CC=C(O)C(O)=C4)C=C3S(=O)(=O)O.N

  • Synonyms:
  • 2,2'-(E)-ethene-1,2-diylbis{5-[2-(3,4-dioxocyclohexa-1,5-dien-1-yl)hydrazino]benzenesulfonic acid}
  • 2,2′-Stilbenedisulfonic acid, 4,4′-bis[(3,4-dihydroxyphenyl)azo]-, diammonium salt
  • Benzenesulfonic acid, 2,2′-(1,2-ethenediyl)bis[5-[(3,4-dihydroxyphenyl)azo]-, diammonium salt
  • Benzenesulfonic acid, 2,2′-(1,2-ethenediyl)bis[5-[2-(3,4-dihydroxyphenyl)diazenyl]-, ammonium salt (1:2)
  • Stilbazo R
  • Stilbazo
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Stilbazo [Spectrophotometric reagent for Al and other metals]

CAS:1571-36-4

Ref: 3B-A5011

1g70.00 €
5g197.00 €
Estimated delivery in United States, on Monday 17 Mar 2025
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Ref: IN-DA001P7N

250mg66.00 €
Estimated delivery in United States, on Monday 24 Mar 2025
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Stilbazo

CAS:1571-36-4

Ref: 3D-FS75805

1g264.00 €
2g372.00 €
5g588.00 €
10g875.00 €
25g1,855.00 €
Estimated delivery in United States, on Friday 4 Apr 2025
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