Description

5-[[4'-[(2-Amino-8-Hydroxy-6-Sulpho-1-Naphthyl)Azo]-3,3'-Dimethyl[1,1'-Biphenyl]-4-Yl]Azo]Salicylic Acid, Sodium Salt is a high-purity, complex azo dye intermediate and analytical reagent. This compound is valued for its precise chemical structure, which provides excellent chromophoric and chelating properties for specialized applications. It is primarily required by manufacturers in the dye and pigment industry, as well as by research laboratories developing colorimetric assays and metal ion indicators.

Application

• Dye and Pigment Synthesis: A key intermediate for producing high-value, complex azo dyes and pigments, particularly for shades of red, brown, and black.
• Analytical Chemistry Reagent: Used as a colorimetric reagent and metal ion indicator in laboratory analysis due to its specific chelating behavior.
• Textile Coloring: Employed in the synthesis of dyes for coloring natural and synthetic fibers.
• Ink Formulation: Serves as a precursor for specialty inks requiring specific lightfastness and color properties.
• Biological Staining: Potential use in histological stains and biological imaging applications in research settings.
• Chemical Research: Utilized as a building block in organic synthesis and materials science research for novel functional molecules.

Basic Information

Item	Details
Product Name	5-[[4'-[(2-Amino-8-Hydroxy-6-Sulpho-1-Naphthyl)Azo]-3,3'-Dimethyl[1,1'-Biphenyl]-4-Yl]Azo]Salicylic Acid, Sodium Salt
CAS No.	94022-44-3
Molecular Formula	C31H23N5O7S·Na
Molecular Weight	640.60 g/mol
Synonyms	Acid Red 404; C.I. 18075; Sodium 5-[[4'-[(2-amino-8-hydroxy-6-sulfo-1-naphthyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]salicylate; 5-[(4'-[(2-Amino-8-hydroxy-6-sulfo-1-naphthalenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl)azo]-2-hydroxybenzoic acid sodium salt; 2-Hydroxy-5-[[4'-[(8-hydroxy-2-amino-6-sulfo-1-naphthyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]benzoic acid sodium salt; Azo dye intermediate 94022-44-3; Salicylic acid azo dye sodium salt
EINECS	Contact for details

Quality Control

Our production of 5-[[4'-[(2-Amino-8-Hydroxy-6-Sulpho-1-Naphthyl)Azo]-3,3'-Dimethyl[1,1'-Biphenyl]-4-Yl]Azo]Salicylic Acid, Sodium Salt adheres to stringent quality protocols. Each batch undergoes comprehensive analysis including HPLC for purity, spectrophotometric identification, and moisture content determination to ensure consistency and performance. Certificates of Analysis (COA) detailing all specifications are provided with every shipment.

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 nature, the container must be kept sealed when not in use to prevent moisture absorption, which can affect purity and performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (1% in Water)	Complete, clear solution

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