Description

Tripotassium 3,3'-Dioxo-[Delta2,2'-Biindoline]Trisulphonate is a high-purity, water-soluble salt derivative of a bisindole sulfonate compound, valued for its role as a key intermediate and functional additive in advanced chemical synthesis. Its primary commercial importance lies in its ability to impart specific optical and chemical properties to final products, making it essential for manufacturers requiring precise performance characteristics. This compound is particularly sought after by producers in the specialty dyes, pharmaceutical intermediates, and high-performance material coatings sectors.

Application

• Specialty Dye & Pigment Intermediate: A critical precursor for synthesizing high-value, water-soluble dyes and fluorescent pigments.
• Pharmaceutical Synthesis: Used as a building block in the production of active pharmaceutical ingredients (APIs) and diagnostic agents.
• Functional Polymer Additive: Imparts specific ionic or chromophoric properties to polymers for advanced material applications.
• Biochemical Research & Reagent: Serves as a specialized reagent in biochemical assays and research applications.
• Photographic & Imaging Chemicals: Utilized in the formulation of light-sensitive layers and imaging materials.
• Textile Auxiliary Agent: Functions as a key component in dye-fixing or finishing processes for technical textiles.

Basic Information

Product Name	Tripotassium 3,3'-Dioxo-[Delta2,2'-Biindoline]Trisulphonate
CAS No.	28606-01-1
Molecular Formula	C16H7K3N2O8S3
Molecular Weight	584.76 g/mol
Synonyms	3,3'-Dioxo-[δ2,2'-biindoline]-5,5',7,7'-tetrasulfonic acid, tripotassium salt; Tripotassium 3,3'-dioxo-2,2'-biindole-5,5',7,7'-tetrasulfonate; Bisindole Sulfonate Potassium Salt; 2,2'-Biindoline-3,3'-dione, 5,5',7,7'-tetrasulfonic acid, tripotassium derivative; Acid Yellow 199 (related dye class); Indigoid Sulfonate Salt; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our Tripotassium 3,3'-Dioxo-[Delta2,2'-Biindoline]Trisulphonate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure high purity, consistent composition, and batch-to-batch reliability. We provide comprehensive Certificates of Analysis (COA) detailing key parameters such as assay, impurity profile, and physical specifications. Our quality commitment aligns with ISO 9001 standards, and we can support requirements for cGMP manufacturing upon request.

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 stability and performance.

Specification

Item	Specification
Appearance	Yellow to orange-yellow powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.5%
Solubility (in Water)	Clear, yellow solution

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