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CAS 10130-29-7

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Direct Yellow 8

Description:
Direct Yellow 8, with the CAS number 10130-29-7, is a synthetic azo dye commonly used in the textile industry for dyeing cellulose fibers, such as cotton and viscose. It is characterized by its bright yellow color and good lightfastness, making it suitable for various applications, including paper and leather. The dye is water-soluble, allowing for easy application in dyeing processes. However, like many azo dyes, it may raise environmental and health concerns due to the potential release of aromatic amines upon degradation. Direct Yellow 8 is typically applied in a neutral to slightly alkaline pH range, which enhances its fixation on fibers. Its chemical structure features azo (-N=N-) linkages, which are responsible for the vivid coloration. Safety data sheets indicate that while it is generally considered safe for use in textiles, proper handling and disposal practices should be followed to mitigate any potential risks associated with its use.
Formula:C24H20N4O5S2·Na
InChI:InChI=1S/C24H20N4O5S2.Na/c1-14-8-13-19-21(22(14)35(31,32)33)34-24(26-19)16-9-11-18(12-10-16)27-28-20(15(2)29)23(30)25-17-6-4-3-5-7-17;/h3-13,20H,1-2H3,(H,25,30)(H,31,32,33);
InChI key:InChIKey=FAQWDIQQUUDLRN-UHFFFAOYSA-N
SMILES:S(=O)(=O)(O)C1=C2C(N=C(S2)C3=CC=C(N=NC(C(NC4=CC=CC=C4)=O)C(C)=O)C=C3)=CC=C1C.[Na]
Synonyms:
  • 7-Benzothiazolesulfonic acid, 6-methyl-2-[4-[2-[2-oxo-1-[(phenylamino)carbonyl]propyl]diazenyl]phenyl]-, sodium salt (1:1)
  • 7-Benzothiazolesulfonic acid, 6-methyl-2-[4-[[2-oxo-1-[(phenylamino)carbonyl]propyl]azo]phenyl]-, monosodium salt
  • Acid Leather Yellow 5G
  • Acid Yellow 186
  • Atlantic Brilliant Yellow 5G
  • Benzyl Yellow 5G
  • Bitamin Direct Lemon Yellow 4G
  • Chloramine Yellow 6G
  • Chlorazol Yellow 6G
  • Coomassie Yellow 6G
  • See more synonyms
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