Description

2-Hydroxy-5-[[4-[(4-Hydroxy-3-Nitro-5-Sodiosulfophenyl)Azo]-5-Methyl-2-Methoxyphenyl]Azo]-3-Methylbenzoic Acid Sodium Salt is a high-purity, water-soluble azo dye intermediate of significant commercial importance. Its complex molecular structure, featuring multiple azo linkages and functional groups, makes it a critical precursor for synthesizing specialized dyes and pigments. This compound is primarily sought by manufacturers in the textile, ink, and specialty coatings industries for producing vivid, stable colors with specific fastness properties.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of high-performance azo dyes for textiles, leather, and paper.
• Specialty Pigment Manufacturing: Used in the production of organic pigments for inks, plastics, and industrial coatings requiring specific color shades and durability.
• Research & Development: Employed in chemical R&D for developing novel chromophores and studying azo coupling reactions.
• Functional Dye Synthesis: A precursor for dyes used in non-textile applications, such as in lasers, optical data storage, or as biological stains.

Basic Information

Item	Detail
Product Name	2-Hydroxy-5-[[4-[(4-Hydroxy-3-Nitro-5-Sodiosulfophenyl)Azo]-5-Methyl-2-Methoxyphenyl]Azo]-3-Methylbenzoic Acid Sodium Salt
CAS No.	6406-38-8
Molecular Formula	C22H16N5Na2O10S
Molecular Weight	604.44 g/mol
Synonyms	Benzoic acid, 2-hydroxy-5-[[4-[(4-hydroxy-3-nitro-5-sulfophenyl)azo]-5-methyl-2-methoxyphenyl]azo]-3-methyl-, disodium salt; C.I. 15865; Acid Orange 67; Sodium 2-hydroxy-5-{[4-({4-hydroxy-3-nitro-5-[(sodiooxy)sulfonyl]phenyl}azo)-5-methyl-2-methoxyphenyl]azo}-3-methylbenzoate; 2-Hydroxy-3-methyl-5-{[4-({4-hydroxy-3-nitro-5-[(sodiooxy)sulfonyl]phenyl}azo)-5-methyl-2-methoxyphenyl]azo}benzoic acid sodium salt
EINECS	Contact for details

Quality Control

Our production of this azo dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and high purity. Every lot is analyzed using advanced techniques like HPLC and spectrophotometry to confirm identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications is provided with each shipment to support your quality assurance processes.

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). This material is hygroscopic (moisture-sensitive); ensure the container is kept sealed to prevent absorption of atmospheric moisture, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Orange to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
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.