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CAS 17681-50-4

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Reactive Red 4

Description:
Reactive Red 4, with the CAS number 17681-50-4, is a synthetic dye belonging to the class of reactive dyes, which are widely used in textile applications for dyeing cotton and other cellulose fibers. This dye is characterized by its vibrant red color and its ability to form covalent bonds with the fiber, resulting in excellent wash and light fastness properties. Reactive Red 4 is typically applied in an aqueous solution, where it reacts with hydroxyl groups in the cellulose, leading to strong dye-fiber interactions. The dye is known for its high solubility in water, making it suitable for various dyeing processes. However, like many synthetic dyes, it may pose environmental concerns due to its potential toxicity and the need for proper wastewater treatment to mitigate its impact. Safety data sheets recommend handling it with care, as it may cause skin and eye irritation. Overall, Reactive Red 4 is valued in the textile industry for its bright coloration and durability, while also necessitating responsible usage and disposal practices.
Formula:C32H23ClN8O14S4·4Na
InChI:InChI=1S/C32H23ClN8O14S4.4Na/c33-30-37-31(34-18-6-9-20(10-7-18)56(44,45)46)39-32(38-30)35-19-8-11-24(58(50,51)52)22(14-19)40-41-27-25(59(53,54)55)13-17-12-21(57(47,48)49)15-23(26(17)28(27)42)36-29(43)16-4-2-1-3-5-16;;;;/h1-15,42H,(H,36,43)(H,44,45,46)(H,47,48,49)(H,50,51,52)(H,53,54,55)(H2,34,35,37,38,39);;;;
InChI key:InChIKey=GUJMNYOTJCTCAS-UHFFFAOYSA-N
SMILES:N(C(=O)C1=CC=CC=C1)C=2C3=C(C=C(S(=O)(=O)O)C(N=NC4=C(S(=O)(=O)O)C=CC(NC=5N=C(NC6=CC=C(S(=O)(=O)O)C=C6)N=C(Cl)N5)=C4)=C3O)C=C(S(=O)(=O)O)C2.[Na]
Synonyms:
  • Cibacron Brilliant Red 3B
  • C.I. Reactive Red 4, tetrasodium salt
  • 2,7-Naphthalenedisulfonic acid, 5-(benzoylamino)-3-[[5-[[4-chloro-6-[(4-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-2-sulfophenyl]azo]-4-hydroxy-, tetrasodium salt
  • 2,7-Naphthalenedisulfonic acid, 5-(benzoylamino)-3-[2-[5-[[4-chloro-6-[(4-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-2-sulfophenyl]diazenyl]-4-hydroxy-, sodium salt (1:4)
  • C.I. Reactive Red 4
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