Description

3-Ethyl-5-(1-Ethyl-(1H)-Quinolin-4-Ylidene)-2-Thioxothiazolidin-4-One CAS NO 71811-78-4 is a specialized heterocyclic organic compound belonging to the quinoline-thiazolidinone class. This high-purity intermediate is valued for its unique molecular structure, which serves as a critical building block in advanced chemical synthesis. It is primarily sought by research institutions and industrial manufacturers in the pharmaceutical and agrochemical sectors for developing novel active ingredients.

Application

• Key pharmaceutical intermediate for the research and synthesis of new drug candidates.
• Building block in agrochemical research for developing next-generation pesticides and herbicides.
• Versatile precursor in organic synthesis and material science for creating complex heterocyclic frameworks.
• Used in dye and pigment chemistry research due to its quinoline-derived chromophore structure.
• Component in academic and industrial R&D for studying structure-activity relationships (SAR).

Basic Information

Product Name	3-Ethyl-5-(1-Ethyl-(1H)-Quinolin-4-Ylidene)-2-Thioxothiazolidin-4-One
CAS No.	71811-78-4
Molecular Formula	C₁₆H₁₆N₂OS₂
Molecular Weight	316.44 g/mol
Synonyms	3-Ethyl-5-(1-ethyl-4-quinolinylidene)-2-thioxo-4-thiazolidinone; 4-Thiazolidinone, 3-ethyl-5-(1-ethyl-4(1H)-quinolinylidene)-2-thioxo-; 71811-78-4; Quinoline-thiazolidinone derivative; 1-Ethyl-4-[(3-ethyl-4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene)methyl]quinolin-1-ium
EINECS	Contact for details

Quality Control

Our 3-Ethyl-5-(1-Ethyl-(1H)-Quinolin-4-Ylidene)-2-Thioxothiazolidin-4-One is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC and NMR, to ensure high purity and consistent batch-to-batch quality. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles 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). Keep away from incompatible materials. For long-term storage, consider an inert atmosphere to maintain stability.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%

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