Description

Dipotassium 2,3-Dihydro-3-Oxo-2-[(4-Sulphonatophenyl)Methylene]Benzo[B]Thiophene-6-Sulphonate is a high-purity, water-soluble organic salt primarily valued for its role as a key intermediate in the synthesis of advanced colorants and functional dyes. Its molecular structure, featuring a benzothiophene core and multiple sulphonate groups, makes it essential for developing products with specific chromophoric and solubility properties. This compound is critical for manufacturers in the specialty chemicals, textile dye, and high-performance pigment industries seeking reliable and consistent raw materials for their formulations.

Application

• Key Intermediate for Reactive Dyes: A crucial building block in the synthesis of high-quality reactive dyes for cotton and other cellulosic fibers.
• Functional Dye Manufacturing: Used in the production of specialized dyes for ink-jet printing, leather coloring, and paper applications.
• Research & Development: Serves as a valuable intermediate in academic and industrial R&D for novel chromophores and optical materials.
• Specialty Pigment Synthesis: Employed in the manufacture of organic pigments requiring enhanced water solubility or specific ionic characteristics.
• Photographic Chemicals: Potential use in the synthesis of certain light-sensitive compounds and color couplers.
• Analytical Reagents: Can be utilized as a standard or reagent in analytical chemistry for method development and calibration.

Basic Information

Product Name	Dipotassium 2,3-Dihydro-3-Oxo-2-[(4-Sulphonatophenyl)Methylene]Benzo[B]Thiophene-6-Sulphonate
CAS No.	68516-62-1
Molecular Formula	C16H10K2O8S3
Molecular Weight	528.70 g/mol
Synonyms	Benzo[b]thiophene-6-sulfonic acid, 2,3-dihydro-3-oxo-2-[(4-sulfophenyl)methylene]-, dipotassium salt; 2-(4-Sulfobenzylidene)-3-oxo-2,3-dihydrobenzo[b]thiophene-6-sulfonic acid dipotassium salt; Dipotassium 2-(4-sulfobenzylidene)-3-oxo-2,3-dihydro-1-benzothiophene-6-sulfonate; Reactive Dye Intermediate; CI 56005; Dye intermediate 68516-62-1
EINECS	Contact for details

Quality Control

Our production of Dipotassium 2,3-Dihydro-3-Oxo-2-[(4-Sulphonatophenyl)Methylene]Benzo[B]Thiophene-6-Sulphonate adheres to a stringent quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for use in sensitive downstream synthesis. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance protocols.

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). This material is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed after opening to minimize exposure to atmospheric moisture and light, which can affect product stability.

Specification

Item	Specification
Appearance	Yellow to orange-yellow powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm

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