Description

3-[[4-[(4-Amino-2-Sodiosulfophenyl)Azo]-5-Methyl-2-Methoxyphenyl]Azo]-4-Hydroxy-7-Phenylaminonaphthalene-2-Sulfonic Acid Sodium Salt is a high-purity, water-soluble azo dye intermediate of significant commercial importance. This compound is valued for its ability to impart specific color properties and is a critical building block in the synthesis of complex dyes and pigments. It is primarily sought after by manufacturers in the textile, ink, and specialty chemical industries for producing vivid and stable colorants.

Application

• Primary Intermediate for Dye Synthesis: A key precursor in the manufacturing of acid dyes, direct dyes, and other azo-based colorants for textiles like wool, silk, and nylon.
• Ink Formulation: Used in the production of high-performance inks for packaging, printing, and writing instruments, contributing to color strength and stability.
• Specialty Pigments: Employed in the synthesis of pigments for coatings, plastics, and artistic materials where specific hue and lightfastness are required.
• Research & Development: Serves as a standard or experimental compound in chemical research for developing new chromophores and studying dye properties.
• Paper Coloring: Potential use in the production of specialty colored papers and paper products.
• Biological Staining: May find application as a staining agent in histological or microbiological research due to its chromophoric structure.

Basic Information

Product Name	3-[[4-[(4-Amino-2-Sodiosulfophenyl)Azo]-5-Methyl-2-Methoxyphenyl]Azo]-4-Hydroxy-7-Phenylaminonaphthalene-2-Sulfonic Acid Sodium Salt
CAS No.	6227-16-3
Molecular Formula	C30H24N6O8S2Na2
Molecular Weight	730.66 g/mol
Synonyms	Acid Red 299 (C.I. 18130); 7-Anilino-4-hydroxy-3-[[4-[(4-amino-2-sulfophenyl)azo]-5-methyl-2-methoxyphenyl]azo]naphthalene-2-sulfonic acid disodium salt; C.I. Acid Red 299; Disodium 7-anilino-4-hydroxy-3-[[4-[(4-amino-2-sulfophenyl)azo]-5-methyl-2-methoxyphenyl]azo]naphthalene-2-sulfonate; 6227-16-3; Acid Leather Red 2GL; Amacid Leather Red 2GL
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and high purity. Quality is verified through advanced analytical techniques including HPLC, UV-Vis spectroscopy, and titration methods. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Ash Content	≤ 1.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.