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CAS 10142-78-6

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1-Naphthalenesulfonic acid, 8-[(4-methylphenyl)amino]-5-[2-[4-[2-(5-sulfo-1-naphthalenyl)diazenyl]-1-naphthalenyl]diazenyl]-, sodium salt (1:2)

Description:
1-Naphthalenesulfonic acid, 8-[(4-methylphenyl)amino]-5-[2-[4-[2-(5-sulfo-1-naphthalenyl)diazenyl]-1-naphthalenyl]diazenyl]-, sodium salt (1:2), commonly referred to as a dye or pigment, is characterized by its complex molecular structure that includes multiple aromatic rings and sulfonic acid groups, which contribute to its solubility in water. This compound typically exhibits vibrant coloration, making it useful in various applications, particularly in the textile and paper industries as a dye. The presence of diazenyl groups indicates that it may have azo dye properties, which are known for their stability and vivid hues. Additionally, the sulfonic acid group enhances its water solubility, allowing for easier application in aqueous solutions. The sodium salt form suggests that it is ionized, which can further influence its solubility and reactivity. Overall, this compound is notable for its potential uses in coloration processes, as well as its chemical stability and solubility characteristics.
Formula:C37H27N5O6S2·2Na
InChI:InChI=1S/C37H27N5O6S2.2Na/c1-23-15-17-24(18-16-23)38-34-22-21-33(29-11-6-14-36(37(29)34)50(46,47)48)42-41-32-20-19-31(25-7-2-3-8-26(25)32)40-39-30-12-4-10-28-27(30)9-5-13-35(28)49(43,44)45;;/h2-22,38H,1H3,(H,43,44,45)(H,46,47,48);;
InChI key:InChIKey=ARHZEWWCAXKSIW-UHFFFAOYSA-N
SMILES:N(C=1C2=C(C(N=NC=3C4=C(C(N=NC=5C6=C(C(S(=O)(=O)O)=CC=C6)C=CC5)=CC3)C=CC=C4)=CC1)C=CC=C2S(=O)(=O)O)C7=CC=C(C)C=C7.[Na]
Synonyms:
  • C.I. 26405
  • C.I. Acid Black 21, disodium salt
  • 1-Naphthalenesulfonic acid, 8-[(4-methylphenyl)amino]-5-[2-[4-[2-(5-sulfo-1-naphthalenyl)diazenyl]-1-naphthalenyl]diazenyl]-, sodium salt (1:2)
  • C.I. Acid Black 21
  • 1-Naphthalenesulfonic acid, 8-[(4-methylphenyl)amino]-5-[[4-[(5-sulfo-1-naphthalenyl)azo]-1-naphthalenyl]azo]-, disodium salt
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