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CAS 2429-84-7

:

Direct Red 1

Description:
Direct Red 1, with the CAS number 2429-84-7, is an azo dye commonly used in various applications, including textiles, paper, and food coloring. It is characterized by its vibrant red hue, which is a result of the azo functional group (-N=N-), a common feature in many synthetic dyes. This compound is soluble in water, making it suitable for dyeing processes that require aqueous solutions. Direct Red 1 exhibits good lightfastness and stability under normal conditions, although its performance can vary depending on the substrate and environmental factors. The dye is often evaluated for its toxicity and environmental impact, as many azo dyes can release harmful amines upon degradation. As such, regulatory guidelines may restrict its use in certain applications, particularly in food and cosmetics. Overall, Direct Red 1 is an important synthetic dye with specific characteristics that make it valuable in industrial applications, while also necessitating careful consideration of its safety and environmental implications.
Formula:C29H21N5O7S·2Na
InChI:InChI=1S/C29H21N5O7S.2Na/c30-24-11-5-18-13-22(42(39,40)41)15-26(36)27(18)28(24)34-32-20-8-3-17(4-9-20)16-1-6-19(7-2-16)31-33-21-10-12-25(35)23(14-21)29(37)38;;/h1-15,35-36H,30H2,(H,37,38)(H,39,40,41);;
InChI key:InChIKey=YITPRUSGDUMRFA-UHFFFAOYSA-N
SMILES:N(=NC1=CC=C(C=C1)C2=CC=C(N=NC3=CC(C(O)=O)=C(O)C=C3)C=C2)C=4C5=C(C=C(S(=O)(=O)O)C=C5O)C=CC4N.[Na]
Synonyms:
  • Benzoic acid, 5-[2-[4′-[2-(2-amino-8-hydroxy-6-sulfo-1-naphthalenyl)diazenyl][1,1′-biphenyl]-4-yl]diazenyl]-2-hydroxy-, sodium salt (1:2)
  • C.I. 22310
  • C.I. Direct Red 1, disodium salt
  • Benzoic acid, 5-[[4′-[(2-amino-8-hydroxy-6-sulfo-1-naphthalenyl)azo][1,1′-biphenyl]-4-yl]azo]-2-hydroxy-, disodium salt
  • C.I. Direct Red 1
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