Description

2-(4-Chlorophenylamino)-4,9-Dioxo-4,9-Dihydronaphtho[2,3-B]Thiophen-3-Carboxylic Acid is a high-purity, advanced pharmaceutical intermediate with a complex heterocyclic structure. This compound is valued for its role as a critical building block in the synthesis of novel active pharmaceutical ingredients (APIs) and organic electronic materials. It is primarily sought by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for developing new therapeutic agents and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the research and synthesis of novel drug candidates, particularly those targeting specific enzymatic pathways.
• Organic Semiconductor Research: Used in the development of organic thin-film transistors (OTFTs) and photovoltaic materials due to its fused aromatic and electron-accepting structure.
• Agrochemical Synthesis: Serves as a building block for creating new herbicides or fungicides with enhanced activity.
• Dye and Pigment Intermediate: Potential use in synthesizing specialized dyes and pigments for high-performance applications.
• Chemical Research & Development: Employed in academic and industrial R&D for exploring new chemical reactions and creating complex molecular libraries.
• Material Science: Investigated for use in organic light-emitting diodes (OLEDs) and other advanced electronic applications.

Basic Information

Product Name	2-(4-Chlorophenylamino)-4,9-Dioxo-4,9-Dihydronaphtho[2,3-B]Thiophen-3-Carboxylic Acid
CAS No.	1258637-95-4
Molecular Formula	C20H11ClN2O4S
Molecular Weight	410.83 g/mol
Synonyms	2-[(4-Chlorophenyl)amino]-4,9-dioxo-4,9-dihydro-1H-naphtho[2,3-b]thiophene-3-carboxylic acid; Naphtho[2,3-b]thiophene-3-carboxylic acid, 2-[(4-chlorophenyl)amino]-4,9-dihydro-4,9-dioxo-; 2-(4-Chloroanilino)-4,9-dioxo-4,9-dihydronaphtho[2,3-b]thiophene-3-carboxylic Acid; 1258637-95-4; 2-(4-Chlorophenylamino)naphthothiophenedicarboxylic acid derivative
EINECS	Contact for details

Quality Control

Our 2-(4-Chlorophenylamino)-4,9-Dioxo-4,9-Dihydronaphtho[2,3-B]Thiophen-3-Carboxylic Acid is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity suitable for research and synthesis. All products undergo rigorous analytical testing, including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under dry conditions to prevent degradation. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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