CAS 12217-34-4

Acid Red 57

Description:

Acid Red 57, with the CAS number 12217-34-4, 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, making it suitable for use in aqueous solutions, and it exhibits good lightfastness and stability under acidic conditions. Acid Red 57 is often employed in the dyeing of protein fibers, such as silk and wool, as well as in the coloration of certain food products, where it is subject to regulatory standards to ensure safety for consumption. The dye's molecular structure allows for interactions with various substrates, contributing to its effectiveness as a coloring agent. However, like many azo dyes, it is essential to monitor its use due to potential environmental and health concerns associated with some azo compounds, particularly regarding their degradation products.

Formula: C₂₄H₂₂N₄O₆S₂

InChI: InChI=1S/C24H22N4O6S2/c1-2-28(17-8-4-3-5-9-17)35(30,31)22-11-7-6-10-20(22)26-27-24-19(25)13-12-16-14-18(36(32,33)34)15-21(29)23(16)24/h3-15,29H,2,25H2,1H3,(H,32,33,34)

InChI key: InChIKey=RJZLMBIYRSBCDQ-UHFFFAOYSA-N

SMILES: N(=NC1=C(S(N(CC)C2=CC=CC=C2)(=O)=O)C=CC=C1)C=3C4=C(C=C(S(=O)(=O)O)C=C4O)C=CC3N

Synonyms:

• (6E)-5-(2-{2-[(2-ethylphenyl)sulfamoyl]phenyl}hydrazino)-6-imino-4-oxo-4,6-dihydronaphthalene-2-sulfonic acid
• 2-Naphthalenesulfonic acid, 6-amino-5-[2-[2-[(ethylphenylamino)sulfonyl]phenyl]diazenyl]-4-hydroxy-
• 2-Naphthalenesulfonic acid, 6-amino-5-[[2-[(ethylphenylamino)sulfonyl]phenyl]azo]-4-hydroxy-
• 6-Amino-5-((2-((ethylphenylamino)sulphonyl)phenyl)azo)-4-hydroxynaphthalene-2-sulphonic acid
• 6-Amino-5-[2-[2-[(ethylphenylamino)sulfonyl]phenyl]diazenyl]-4-hydroxy-2-naphthalenesulfonic acid
• Acid Red 3B
• Acid Red 3GX
• Acid Rubine 3GP
• Apollo Nylon Fast Red L-BL
• Best Acid Light Red 3B
• Chugacid Rubinol 3GA
• Covanyl Red 3GP
• Daedo Acid Red C-BL
• Diacid Fast Rubinole 3G
• Dyacid Red 3GP
• Eniacid Red 3GP
• Eniamide Red 1-3GL
• Erionyl Rubine E 3GS
• Euramina Red 3G
• Fast Light Red 3GP
• Hispalon Red B 3B
• Intracid Fast Red 3GP
• Kenamide Red G 3B
• Lerui Acid Red 3GX
• Naphthazine Red 3GP
• Nylomine Acid Red B 3B
• Nylosan Red E-BL
• Nylosan Red E-BNL
• Rifa Acid Fast Red E-BL
• Sandolan Rubinole E 3GPL
• Simacid Red 24897
• Suminol Levelling Rubinol 3GP
• Synoacid Red E-BL
• Tectilon Red 3B
• Triacid Fast Rubinol 3GP

Acid red 57

CAS: 12217-34-4

Acid Red 57 is a reactive dye that is used for wastewater treatment. The Langmuir adsorption isotherm and the kinetic data show that Acid Red 57 has good thermodynamic stability and chemical stability in acidic conditions. The kinetic data also shows that this dye has an exothermic reaction, with an activation energy of about 28 kJ/mol. Acid Red 57 can be synthesized by the condensation of 2-amino-5-nitrobenzenesulfonic acid with 3,3'-dichloro-4,4'-dimethoxybenzidine or 1-(2-hydroxyethyl)piperazine.

Formula: C₂₄H₂₂N₄O₆S₂

Color and Shape: Red Powder

Molecular weight: 526.59 g/mol

Ref: 3D-FA165998