Description

Sodium 2-[4-[(2,4-Diaminophenyl)Azo]Anilino]-5-Nitrobenzenesulphonate is a specialized azo dye intermediate of significant commercial importance. This compound is valued for its precise chemical structure, which serves as a critical building block in the synthesis of high-performance dyes and pigments. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries seeking to produce colorants with specific fastness and hue properties.

Application

• Primary intermediate for the synthesis of azo dyes and pigments used in textile coloration.
• Key precursor in manufacturing specialty inks for packaging and security printing applications.
• Used in research and development for creating novel functional colorants with enhanced light and wash fastness.
• Potential component in the formulation of biological stains and indicators for laboratory use.
• Intermediate for dyes used in the coloration of leather and paper products.

Basic Information

Product Name	Sodium 2-[4-[(2,4-Diaminophenyl)Azo]Anilino]-5-Nitrobenzenesulphonate
CAS No.	94236-85-8
Molecular Formula	C18H14N6NaO5S
Molecular Weight	449.40 g/mol
Synonyms	Benzenesulfonic acid, 2-[4-[(2,4-diaminophenyl)azo]anilino]-5-nitro-, sodium salt; Sodium 2-((4-((2,4-diaminophenyl)diazenyl)phenyl)amino)-5-nitrobenzenesulfonate; Azo dye intermediate 94236-85-8; 5-Nitro-2-((4-((2,4-diaminophenyl)diazenyl)phenyl)amino)benzenesulfonic 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 chromatographic and spectroscopic techniques. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Dark red to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (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.