Description

Disodium 5-[[4'-[(1-Amino-4-Sulphonato-2-Naphthyl)Azo][1,1'-Biphenyl]-4-Yl]Azo]Salicylate is a high-purity, water-soluble azo dye intermediate known for its excellent chromophore properties and stability. This compound is critical for manufacturers requiring precise color development and consistent batch-to-batch performance in demanding applications. It is primarily utilized by producers of specialized dyes and pigments for textiles, inks, and advanced materials where color fastness and chemical compatibility are paramount.

Application

• Textile Dyeing: As a key intermediate for synthesizing high-grade, wash-fast azo dyes for cotton, wool, and synthetic fibers.
• Ink Manufacturing: Used in the production of colorants for industrial inks, including packaging and security inks, due to its vivid color yield.
• Pigment Synthesis: Serves as a precursor for creating organic pigments used in plastics, paints, and coatings.
• Research & Development: Employed in chemical research for developing new chromogenic agents and functional dyes.
• Specialty Chemicals: A component in formulations for colorimetric sensors and analytical reagents.

Basic Information

Product Name	Disodium 5-[[4'-[(1-Amino-4-Sulphonato-2-Naphthyl)Azo][1,1'-Biphenyl]-4-Yl]Azo]Salicylate
CAS No.	2429-79-0
Molecular Formula	C35H23N5Na2O8S2
Molecular Weight	751.68 g/mol
Synonyms	Acid Red 299; C.I. 18130; Disodium 5-[(4'-[(1-amino-4-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl)azo]salicylate; 5-[[4'-[(1-Amino-4-sulfo-2-naphthalenyl)azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxybenzoic acid disodium salt; 2-Hydroxy-5-[[4'-[(1-amino-4-sulfo-2-naphthyl)azo]biphenyl-4-yl]azo]benzoic acid disodium salt; C.I. Acid Red 299; Azo Rubine S; Lissamine Red 2B
EINECS	Contact for details

Quality Control

Our Disodium 5-[[4'-[(1-Amino-4-Sulphonato-2-Naphthyl)Azo][1,1'-Biphenyl]-4-Yl]Azo]Salicylate is manufactured under strict quality control protocols to ensure high purity and consistency. Each batch is tested against stringent in-house specifications, with a focus on color strength, solubility, and impurity profile. A Certificate of Analysis (COA) detailing assay, identification, and related substances is provided with every shipment to guarantee compliance with your technical requirements.

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). Keep away from incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Solubility (in Water)	Clear solution
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm

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