Description

Dilithium 2-[6-(6-Methyl-7-Sulphonatobenzothiazol-2-Yl)-2-Quinolyl]-1,3-Dioxoindan-5-Carboxylate is a high-purity, water-soluble organic salt complex valued for its unique photophysical properties. This compound is engineered to deliver consistent performance as a specialized functional material in advanced manufacturing and research. It is primarily sought by industries involved in the development of optical materials, specialty dyes, and high-performance sensors.

Application

• Optical Brightening Agent (OBA) for high-grade papers, textiles, and plastics.
• Fluorescent Probe/Tracer in biochemical assays and diagnostic research.
• Laser Dye Intermediate for tunable dye lasers and photonic devices.
• Specialty Pigment Precursor in the formulation of advanced inks and coatings.
• Photographic Sensitizer for specialized photographic and imaging applications.
• Material Science Research for developing novel luminescent or charge-transfer materials.

Basic Information

Product Name	Dilithium 2-[6-(6-Methyl-7-Sulphonatobenzothiazol-2-Yl)-2-Quinolyl]-1,3-Dioxoindan-5-Carboxylate
CAS No.	65151-69-1
Molecular Formula	C28H14Li2N2O7S2
Molecular Weight	584.3 g/mol (approx.)
Synonyms	Dilithium 2-(6-(6-methyl-7-sulfonato-2-benzothiazolyl)-2-quinolyl)-1,3-dioxoindan-5-carboxylate; 65151-69-1; 2-[6-(6-Methyl-7-sulphonatobenzothiazol-2-yl)-2-quinolyl]-1,3-dioxoindan-5-carboxylic acid, dilithium salt; Benzoic acid, 2-[6-(6-methyl-7-sulfo-2-benzothiazolyl)-2-quinolyl]-1,3-dioxo-1H-inden-5-yl-, dilithium salt; Fluorescent Brightener ER-II; Optical Brightener ER-II
EINECS	Contact for details

Quality Control

Our Dilithium 2-[6-(6-Methyl-7-Sulphonatobenzothiazol-2-Yl)-2-Quinolyl]-1,3-Dioxoindan-5-Carboxylate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. Certificates of Analysis (COA) documenting all critical quality attributes are available 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 degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to orange-yellow powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines
pH (1% aqueous solution)	6.0 - 8.0

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