Description

Disodium 5-[(2,3-Dichlorocyclopropyl)Amino]-4-Hydroxy-3-(Phenylazo)Naphthalene-2,7-Disulphonate is a specialized, high-purity azo dye intermediate of significant industrial importance. Its complex molecular structure, featuring a dichlorocyclopropyl group and disulphonate salts, provides unique chromophoric properties essential for synthesizing high-performance colorants. This compound is primarily sought by manufacturers in the dye and pigment industries who require precise, reliable intermediates for producing vivid and stable colors. Consistent quality and supply chain integrity are paramount for its successful integration into advanced formulations.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a critical building block in the synthesis of high-value, complex azo dyes, particularly for shades of red, orange, and brown.
• Textile Dye Manufacturing: Used in the production of dyes for coloring natural and synthetic fibers, where lightfastness and washfastness are key requirements.
• Specialty Ink Formulations: Employed in the creation of pigments for high-performance inks used in packaging, security printing, and digital applications.
• Research & Development: Utilized in chemical R&D labs for developing novel chromophores and studying structure-property relationships in dye chemistry.
• Functional Material Synthesis: Potential applications in the development of colorants for plastics, coatings, and other polymeric materials requiring specific thermal and chemical stability.

Basic Information

Product Name	Disodium 5-[(2,3-Dichlorocyclopropyl)Amino]-4-Hydroxy-3-(Phenylazo)Naphthalene-2,7-Disulphonate
CAS No.	100208-44-4
Molecular Formula	C19H13Cl2N3Na2O7S2
Molecular Weight	584.33 g/mol
Synonyms	5-[(2,3-Dichlorocyclopropyl)amino]-4-hydroxy-3-(phenylazo)naphthalene-2,7-disulfonic acid disodium salt; C.I. Azoic Coupling Component; Azo dye intermediate 100208-44-4; Disodium 5-[(2,3-dichlorocyclopropyl)amino]-4-hydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonate; 2,7-Naphthalenedisulfonic acid, 5-[(2,3-dichlorocyclopropyl)amino]-4-hydroxy-3-(2-phenyldiazenyl)-, disodium salt
EINECS	Contact for details

Quality Control

Our production of Disodium 5-[(2,3-Dichlorocyclopropyl)Amino]-4-Hydroxy-3-(Phenylazo)Naphthalene-2,7-Disulphonate adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling, to meet exacting customer specifications. A Certificate of Analysis (COA) detailing all critical parameters is provided with every shipment, ensuring full traceability and compliance with your quality assurance requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed when not in use to prevent absorption of atmospheric moisture, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Residue on Ignition (Sulfated Ash)	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0% Any single impurity ≤ 1.0%
Solubility (in Water)	Freely soluble

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