CAS 3567-66-6
:Acid Red 33
Description:
Acid Red 33, with the CAS number 3567-66-6, is a synthetic azo dye commonly used in various applications, including textiles, food, and cosmetics. It is characterized by its vibrant red color, which is attributed to the presence of azo functional groups (-N=N-). This dye is water-soluble, allowing it to be easily incorporated into aqueous solutions for dyeing processes. Acid Red 33 exhibits good lightfastness and stability under acidic conditions, making it suitable for use in acidic dyeing environments. However, like many azo dyes, it may raise environmental and health concerns due to potential degradation products that can be toxic or carcinogenic. Therefore, its use is often regulated in many countries. In terms of chemical structure, Acid Red 33 contains sulfonic acid groups, which enhance its solubility and affinity for various substrates. Overall, while Acid Red 33 is valued for its coloring properties, careful consideration of its safety and environmental impact is essential in its application.
Formula:C16H13N3O7S2·2Na
InChI:InChI=1S/C16H13N3O7S2.2Na/c17-12-8-11(27(21,22)23)6-9-7-13(28(24,25)26)15(16(20)14(9)12)19-18-10-4-2-1-3-5-10;;/h1-8,20H,17H2,(H,21,22,23)(H,24,25,26);;
InChI key:InChIKey=MRKUMAZUFKZXIW-UHFFFAOYSA-N
SMILES:OC=1C2=C(C=C(S(=O)(=O)O)C1N=NC3=CC=CC=C3)C=C(S(=O)(=O)O)C=C2N.[Na]
Synonyms:- Red 10B
- C.I. Acid Red 33
- C.I. Acid Red 33, disodium salt
- 2,7-Naphthalenedisulfonic acid, 5-amino-4-hydroxy-3-(phenylazo)-, disodium salt
- 2,7-Naphthalenedisulfonic acid, 5-amino-4-hydroxy-3-(2-phenyldiazenyl)-, sodium salt (1:2)
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