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CAS 633-96-5

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Acid Orange 7

Description:
Acid Orange 7, also known as Orange II, is an azo dye commonly used in various applications, including textiles, food, and cosmetics. It is characterized by its bright orange color and is soluble in water, making it suitable for dyeing processes. The chemical structure of Acid Orange 7 features an azo group (-N=N-) that connects two aromatic rings, contributing to its color properties. This compound has a relatively low molecular weight and exhibits good stability under normal conditions, although it can be sensitive to light and heat. Acid Orange 7 is classified as a synthetic dye and is often used in acidic dyeing processes due to its affinity for protein fibers. However, it is important to note that some azo dyes, including Acid Orange 7, have raised environmental and health concerns, leading to regulatory scrutiny in certain regions. As such, its use may be restricted or monitored in specific applications to ensure safety and compliance with environmental standards.
Formula:C16H12N2O4S·Na
InChI:InChI=1S/C16H12N2O4S.Na/c19-15-10-5-11-3-1-2-4-14(11)16(15)18-17-12-6-8-13(9-7-12)23(20,21)22;/h1-10,19H,(H,20,21,22);
InChI key:InChIKey=HMCJIBHBYMZCHV-UHFFFAOYSA-N
SMILES:N(=NC1=CC=C(S(=O)(=O)O)C=C1)C=2C3=C(C=CC2O)C=CC=C3.[Na]
Synonyms:
  • Natrium-4-[(2-hydroxy-1-naphthyl)azo]benzolsulfonat
  • Benzenesulfonic acid, 4-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-, sodium salt (1:1)
  • C.I. 15510
  • 4-(2-Hydroxy-1-naphthylazo)benzenesulfonic acid sodium salt
  • C.I. Acid Orange 7, monosodium salt
  • sodium 4-[(E)-(2-hydroxynaphthalen-1-yl)diazenyl]benzenesulfonate
  • Orange Ⅱ
  • Benzenesulfonic acid, 4-[(2-hydroxy-1-naphthalenyl)azo]-, monosodium salt
  • sodium 4-[(2E)-2-(2-oxonaphthalen-1(2H)-ylidene)hydrazino]benzenesulfonate
  • Sodium 4-[(2-hydroxy-1-naphthyl)azo]benzenesulphonate
  • See more synonyms
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90
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95
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100
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