Description

6-Amino-5-[[5-Chloro-2-[(p-Tolyl)Sulphonyl]Phenyl]Azo]-4-Hydroxynaphthalene-2-Sulphonic Acid is a high-purity, specialized azo dye intermediate with a complex molecular structure designed for demanding synthesis applications. Its primary value lies in its role as a key precursor for producing high-performance, colorfast dyes and pigments, particularly in shades of red and violet. This compound is essential for manufacturers in the textile, ink, and specialty chemical industries who require consistent quality and precise chemical functionality for their advanced coloring processes.

Application

• Primary Intermediate for Azo Dyes: Serves as a crucial building block in the synthesis of high-value, complex azo dyes for textiles and leather.
• Specialty Pigment Manufacturing: Used in the production of organic pigments for inks, coatings, and plastics where color stability is critical.
• Research & Development: A valuable compound for chemical R&D labs exploring new chromophores and dye structures.
• Functional Dye Synthesis: Potential precursor for dyes used in non-textile applications, such as sensors or imaging agents.

Basic Information

Product Name	6-Amino-5-[[5-Chloro-2-[(p-Tolyl)Sulphonyl]Phenyl]Azo]-4-Hydroxynaphthalene-2-Sulphonic Acid
CAS No.	85480-79-1
Molecular Formula	C23H17ClN4O6S2
Molecular Weight	552.99 g/mol
Synonyms	6-Amino-5-((5-chloro-2-(p-tolylsulfonyl)phenyl)azo)-4-hydroxy-2-naphthalenesulfonic acid; C.I. Acid Red 407; Acid Red 407; 2-Naphthalenesulfonic acid, 6-amino-5-((5-chloro-2-(4-methylphenyl)sulfonyl)phenyl)azo)-4-hydroxy-; 85480-79-1; 6-Amino-5-[[5-chloro-2-[(4-methylphenyl)sulfonyl]phenyl]azo]-4-hydroxy-2-naphthalenesulfonic acid
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and purity. Every lot is analyzed using modern analytical techniques, including HPLC and spectroscopic methods, to confirm identity and meet specified impurity profiles. A comprehensive Certificate of Analysis (COA) detailing all relevant specifications is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials. Due to its light-sensitive nature, containers should be opaque or stored in dark conditions.

Specification

Item	Specification
Appearance	Dark red to violet powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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