Description

5-[(6-Ethoxy-1-Ethyl-(1H)-Quinolin-2-Ylidene)Ethylidene]-3-Ethyl-3-Methyl-4-Oxo-2-Thioxothiazolidinium Toluene-p-Sulphonate is a specialized, high-purity organic salt primarily valued as a key intermediate in advanced chemical synthesis. Its complex heterocyclic structure makes it a critical building block for developing functional dyes, pigments, and photoactive materials. This compound is essential for R&D and production in the fine chemical, specialty dye, and advanced material science industries, where precise molecular architecture is required.

Application

• Synthesis of Functional Dyes & Pigments: Serves as a crucial precursor for creating novel cyanine, merocyanine, and polymethine dyes with specific optical properties.
• Advanced Material Research: Used in the development of organic semiconductors, non-linear optical (NLO) materials, and photoconductive polymers.
• Sensitizer & Photoinitiator Production: A key intermediate for manufacturing photoinitiators used in UV-curable inks, coatings, and photoresists.
• Analytical Chemistry Reagents: Employed in the synthesis of fluorescent probes and staining agents for biological and chemical detection.
• Pharmaceutical Intermediate: Potential use in the research and synthesis of novel pharmacologically active compounds with quinoline-based structures.

Basic Information

Product Name	5-[(6-Ethoxy-1-Ethyl-(1H)-Quinolin-2-Ylidene)Ethylidene]-3-Ethyl-3-Methyl-4-Oxo-2-Thioxothiazolidinium Toluene-p-Sulphonate
CAS No.	68516-66-5
Molecular Formula	C28H30N2O5S2
Molecular Weight	538.68 g/mol
Synonyms	3-Ethyl-5-[(1-ethyl-6-ethoxy-2(1H)-quinolylidene)ethylidene]-2-thioxo-4-thiazolidinone p-toluenesulfonate; 2-(3-Ethyl-4-oxo-2-thioxo-5-thiazolidinylidene)methyl-1-ethyl-6-ethoxyquinolinium p-toluenesulfonate; Quinolinium, 2-[2-(3-ethyl-4-oxo-2-thioxo-5-thiazolidinylidene)ethylidene]-1-ethyl-6-ethoxy-, salt with 4-methylbenzenesulfonic acid (1:1); NK-2012; Dye Intermediate NK-2012; Merocyanine Dye Intermediate; Thiazolidinone Quinolinium Tosylate
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality management systems, ensuring batch-to-batch consistency for critical R&D and manufacturing processes. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment 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 a controlled room temperature (15-25°C). The compound is light-sensitive and should be handled under appropriate conditions to prevent degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Dark green to black crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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