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CAS 3214-47-9

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Direct Yellow 50

Description:
Direct Yellow 50, with the CAS number 3214-47-9, is a synthetic azo dye commonly used in the textile industry for dyeing cellulose fibers, such as cotton and rayon. This dye is characterized by its bright yellow color and good lightfastness, making it suitable for various applications, including paper and leather. It is water-soluble, allowing for easy application in dyeing processes. However, like many azo dyes, Direct Yellow 50 can raise environmental and health concerns due to the potential release of aromatic amines upon degradation. These compounds can be toxic and carcinogenic, prompting regulations in some regions regarding their use. The dye's stability and performance can be influenced by factors such as pH and temperature during the dyeing process. Overall, while Direct Yellow 50 is valued for its vibrant hue and effectiveness in dyeing, it is essential to consider safety and environmental implications associated with its use.
Formula:C35H28N6O13S4·4Na
InChI:InChI=1S/C35H28N6O13S4.4Na/c1-19-13-21(9-11-29(19)40-38-23-15-27-25(33(17-23)57(49,50)51)5-3-7-31(27)55(43,44)45)36-35(42)37-22-10-12-30(20(2)14-22)41-39-24-16-28-26(34(18-24)58(52,53)54)6-4-8-32(28)56(46,47)48;;;;/h3-18H,1-2H3,(H2,36,37,42)(H,43,44,45)(H,46,47,48)(H,49,50,51)(H,52,53,54);;;;
InChI key:InChIKey=LMFARDQIOPUVMK-UHFFFAOYSA-N
SMILES:S(=O)(=O)(O)C=1C2=C(C(S(=O)(=O)O)=CC=C2)C=C(N=NC3=C(C)C=C(NC(NC4=CC(C)=C(N=NC5=CC6=C(C(S(=O)(=O)O)=C5)C=CC=C6S(=O)(=O)O)C=C4)=O)C=C3)C1.[Na]
Synonyms:
  • 1,5-Naphthalenedisulfonic acid, 3,3'-(carbonylbis(imino(2-methyl-4,1-phenylene)-2,1-diazenediyl))bis-, sodium salt (1:4)
  • 1,5-Naphthalenedisulfonic acid, 3,3′-[carbonylbis[imino(2-methyl-4,1-phenylene)azo]]bis-, tetrasodium salt
  • Abcol Direct Yellow RLSW
  • Direct Fast Yellow LR
  • Direct Fast Yellow R
  • Direct Lightfast Yellow K
  • Direct Lightfast Yellow RS
  • Direct Yellow 50
  • Direct yellow 0
  • Helion Yellow RL
  • See more synonyms
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