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CAS 6416-66-6

:

Acid Red 249

Description:
Acid Red 249, with the CAS number 6416-66-6, is a synthetic azo dye commonly used in various applications, including textiles, food, and cosmetics. It is characterized by its vibrant red color, which is attributed to the presence of azo groups (-N=N-). This dye is water-soluble, making it suitable for use in aqueous solutions. Acid Red 249 exhibits good lightfastness and stability under acidic conditions, which enhances its utility in dyeing processes. However, like many azo dyes, it may raise environmental and health concerns due to potential toxicity and the risk of releasing aromatic amines upon degradation. Therefore, its use is often regulated in many countries. In terms of chemical structure, Acid Red 249 contains sulfonic acid groups that contribute to its solubility and affinity for various substrates. Overall, while Acid Red 249 is valued for its coloring properties, careful consideration of its environmental impact and safety profile is essential in its application.
Formula:C29H22ClN3O10S3·2Na
InChI:InChI=1S/C29H22ClN3O10S3.2Na/c1-17-7-10-21(11-8-17)44(35,36)33-24-16-22(45(37,38)39)13-18-14-26(46(40,41)42)28(29(34)27(18)24)32-31-23-15-19(30)9-12-25(23)43-20-5-3-2-4-6-20;;/h2-16,33-34H,1H3,(H,37,38,39)(H,40,41,42);;
InChI key:InChIKey=DZQVTRHDMYKMNL-UHFFFAOYSA-N
SMILES:N(S(=O)(=O)C1=CC=C(C)C=C1)C=2C3=C(C=C(S(=O)(=O)O)C(N=NC4=C(OC5=CC=CC=C5)C=CC(Cl)=C4)=C3O)C=C(S(=O)(=O)O)C2.[Na]
Synonyms:
  • 2,7-Naphthalenedisulfonic acid, 3-[(5-chloro-2-phenoxyphenyl)azo]-4-hydroxy-5-[[(4-methylphenyl)sulfonyl]amino]-, disodium salt
  • 2,7-Naphthalenedisulfonic acid, 3-[2-(5-chloro-2-phenoxyphenyl)diazenyl]-4-hydroxy-5-[[(4-methylphenyl)sulfonyl]amino]-, sodium salt (1:2)
  • Acid Brilliant Red B
  • Acid Red 249
  • Anadurm Brilliant Red M-B
  • Benzyl Fast Rubine 2B
  • Best Acid Milling Red 2B
  • Best Acid Red 2B
  • Brilliant Milling Red 2B
  • Brilliant Milling Red B
  • See more synonyms
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