Description

Sodium 4-Hydroxy-3-[(2-Methoxy-5-Nitrophenyl)Azo]-6-(Phenylamino)Naphthalene-2-Sulphonate is a high-purity azo dye intermediate known for its specific chromophoric properties. This compound is critical for manufacturers requiring consistent colorant performance and reliable chemical synthesis. It is primarily utilized by producers of specialty dyes, pigments, and colorants for applications in textiles, inks, and advanced material coatings.

Application

• Primary intermediate for the synthesis of azo dyes and pigments used in textile coloration.
• Key component in the manufacturing of specialty inks for printing and packaging applications.
• Used in research and development of functional colorants for advanced materials and coatings.
• Potential use as a biological stain or indicator in laboratory and diagnostic settings.
• Employed in the production of colored polymers and plastics where specific shade and lightfastness are required.
• Acts as a chemical precursor for further functionalization in organic synthesis.

Basic Information

Product Name	Sodium 4-Hydroxy-3-[(2-Methoxy-5-Nitrophenyl)Azo]-6-(Phenylamino)Naphthalene-2-Sulphonate
CAS No.	3626-41-3
Molecular Formula	C23H17N4NaO7S
Molecular Weight	516.46 g/mol
Synonyms	Acid Red 249; C.I. 18134; 2-Naphthalenesulfonic acid, 4-hydroxy-3-[(2-methoxy-5-nitrophenyl)azo]-6-(phenylamino)-, sodium salt; Sodium 4-hydroxy-3-[(2-methoxy-5-nitrophenyl)azo]-6-anilino-2-naphthalenesulfonate; 6-Anilino-4-hydroxy-3-[(2-methoxy-5-nitrophenyl)azo]-2-naphthalenesulfonic acid sodium salt; C.I. Acid Red 249; Mordant Red 19 (related class)
EINECS	Contact for details

Quality Control

Our Sodium 4-Hydroxy-3-[(2-Methoxy-5-Nitrophenyl)Azo]-6-(Phenylamino)Naphthalene-2-Sulphonate is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specific test results are available upon request to support your quality assurance protocols.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (1% in Water)	Complete, clear solution

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