Description

7-Hydroxy-8-[[4-(6-Methyl[2,6'-Bibenzothiazol]-2'-Yl)-2-Sulphophenyl]Azo]Naphthalene-1,3-Disulphonic Acid, Sodium Salt is a high-purity, water-soluble anionic dye intermediate characterized by its complex polycyclic and azo-based structure. This compound is valued for its ability to impart exceptional color strength and thermal stability in demanding applications. It is primarily sought after by manufacturers in the specialty dyes and pigments industry, as well as researchers developing advanced functional materials.

Application

• Primary Intermediate for Reactive and Direct Dyes: A key building block in the synthesis of high-performance dyes for textiles, particularly cotton and cellulose fibers.
• Specialty Pigment Manufacturing: Used in the production of pigments requiring high color fastness and chemical resistance for plastics, inks, and coatings.
• Functional Dye Synthesis: Serves as a precursor for dyes used in non-textile applications, such as laser dyes, optical data storage, and sensitizers.
• Research & Development: Utilized in academic and industrial R&D for exploring new chromophores and advanced material science applications.
• Analytical Chemistry: Can be employed as a staining agent or a complexometric indicator in specific analytical procedures.

Basic Information

Product Name	7-Hydroxy-8-[[4-(6-Methyl[2,6'-Bibenzothiazol]-2'-Yl)-2-Sulphophenyl]Azo]Naphthalene-1,3-Disulphonic Acid, Sodium Salt
CAS No.	93940-20-6
Molecular Formula	C30H17N4O10S4Na3 (or related sodium salt form)
Molecular Weight	Contact for details
Synonyms	7-Hydroxy-8-[(4-(6-methyl-2,6'-bibenzothiazol-2'-yl)-2-sulfophenyl)azo]naphthalene-1,3-disulfonic acid trisodium salt; CI 128485; Reactive Dye Intermediate; Azo Benzothiazole Dye Intermediate; Sodium 7-hydroxy-8-{[4-(6-methyl[2,6'-bibenzothiazol]-2'-yl)-2-sulfophenyl]diazenyl}naphthalene-1,3-disulfonate
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and purity. Every lot is analyzed using advanced techniques like HPLC and spectrophotometry to confirm identity and strength. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications 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 a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark brown to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0% (by area normalization)
Moisture Content	≤ 5.0% (Karl Fischer)
Solubility (in Water)	Clear solution at 1% w/v
Heavy Metals (as Pb)	≤ 20 ppm
Sulfated Ash	Contact for details

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