Description

Disodium 5,5'-[(1-Methylethylidene)Bis(4,1-Phenyleneoxysulphonyl-2,1-Phenyleneazo)]Bis[6-Amino-4-Hydroxynaphthalene-2-Sulphonate] is a high-purity, complex azo dye intermediate essential for producing vibrant and stable colorants. Its precise molecular structure ensures excellent chromophore properties, making it a critical component for manufacturers requiring consistent and reliable coloration. This product is primarily utilized by the specialty chemical, textile dye, and advanced pigment industries for high-performance applications.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-grade reactive dyes for cotton and cellulose fiber dyeing.
• Specialty Pigment Manufacturing: Used in the production of high-performance organic pigments for inks, coatings, and plastics.
• Functional Dye Synthesis: Serves as a precursor for dyes used in specialized applications, including laser dyes and optical data storage media.
• Textile Colorant Formulation: Essential for creating deep, wash-fast, and light-fast colors in textile finishing processes.
• Research & Development: A valuable compound for R&D laboratories exploring new chromophores and advanced color chemistry.

Basic Information

Product Name	Disodium 5,5'-[(1-Methylethylidene)Bis(4,1-Phenyleneoxysulphonyl-2,1-Phenyleneazo)]Bis[6-Amino-4-Hydroxynaphthalene-2-Sulphonate]
CAS No.	52333-30-9
Molecular Formula	C52H36N6Na2O16S4
Molecular Weight	1190.14 g/mol
Synonyms	Disodium 5,5'-(isopropylidenebis(4,1-phenylenoxy-4,1-phenylenesulfonyl-2,1-phenyleneazo))bis(6-amino-4-hydroxy-2-naphthalenesulfonate); C.I. Reactive Orange 84 Intermediate; Reactive Orange 84 Precursor; Azo Dye Intermediate 52333-30-9; Bis(azo) Naphthalene Sulfonate Derivative; 6-Amino-4-hydroxy-2-naphthalenesulfonic acid, azo dye with a disulfonated bis-phenylene derivative; (Technical name variations may apply)
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and purity. Every lot is analyzed using modern analytical techniques, including HPLC and spectrophotometry, to verify critical parameters. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory compliance needs.

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 nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Solubility (in Water)	Partially soluble, forms a colored solution
Heavy Metals (as Pb)	≤ 20 ppm

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