Description

Sodium 7-[(Chloroacetyl)Amino]-4-Hydroxy-3-(Phenylazo)Naphthalene-2-Sulphonate is a specialized azo dye intermediate and chemical building block of significant importance in fine chemical synthesis. Its molecular structure, featuring reactive chloroacetyl and sulphonate groups, makes it a versatile precursor for creating more complex colorants and functional molecules. This compound is primarily sought by manufacturers in the dye and pigment industries, as well as by research institutions developing advanced materials and biochemical probes.

Application

• Primary Intermediate for Azo Dyes: Serves as a key precursor in the synthesis of acid dyes, direct dyes, and reactive dyes used for textiles, leather, and paper.
• Functional Dye Synthesis: Used in the production of specialized dyes for biological staining, pH indicators, and analytical reagents.
• Research & Development: Employed in academic and industrial R&D labs as a building block for novel chromophores and photoactive compounds.
• Pigment Manufacturing: Acts as an intermediate in the production of high-performance organic pigments for inks and coatings.
• Chemical Synthesis: Utilized in organic synthesis to introduce specific functional groups into larger molecular architectures.

Basic Information

Product Name	Sodium 7-[(Chloroacetyl)Amino]-4-Hydroxy-3-(Phenylazo)Naphthalene-2-Sulphonate
CAS No.	5572-43-0
Molecular Formula	C18H12ClN3NaO5S
Molecular Weight	440.81 g/mol
Synonyms	7-[(Chloroacetyl)amino]-4-hydroxy-3-(phenylazo)naphthalene-2-sulfonic acid sodium salt; C.I. 18050; Sodium 2-[(4-hydroxy-3-((E)-phenyldiazenyl)naphthalen-1-yl)amino]-2-oxoethanesulfonate; 1-Amino-4-hydroxy-3-(phenylazo)naphthalene-2-sulfonic acid N-chloroacetyl derivative sodium salt; Azo dye intermediate 5572-43-0; N-Chloroacetyl H-acid azo dye sodium salt
EINECS	Contact for details

Quality Control

Our production of Sodium 7-[(Chloroacetyl)Amino]-4-Hydroxy-3-(Phenylazo)Naphthalene-2-Sulphonate adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and compliance with customer specifications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment.

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 sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Orange to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents	Meets ICH guidelines

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