Description

2-Amino-4,5-Dihydrobenzo[B]Thiophene-3,4,5,6,7-Pentacarboxylic Acid 3-Ethyl 4,5,6,7-Tetramethyl Ester is a high-purity, multifunctional heterocyclic building block of significant interest in advanced organic synthesis. Its complex molecular architecture, featuring both amino and multiple ester functionalities on a fused benzo[b]thiophene core, makes it a versatile precursor for constructing sophisticated molecular frameworks. This compound is primarily sought after by pharmaceutical R&D and specialty chemical manufacturers for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key synthon for the research and development of novel drug candidates, particularly in areas targeting complex heterocyclic structures.
• Organic Light-Emitting Diode (OLED) Materials: Serves as a sophisticated building block for electron-transport or host materials in advanced display and lighting technologies.
• Ligand Synthesis: Used in the preparation of complex chelating ligands for catalysis and metal-organic frameworks (MOFs).
• Polymer & Dye Chemistry: Acts as a monomer or precursor for high-performance polymers, pigments, and functional dyes.
• Agrochemical Research: Employed in the synthesis of new-generation crop protection agents with unique modes of action.
• Academic & Industrial Research: A valuable compound for methodological studies in organic synthesis and material science.

Basic Information

Product Name	2-Amino-4,5-Dihydrobenzo[B]Thiophene-3,4,5,6,7-Pentacarboxylic Acid 3-Ethyl 4,5,6,7-Tetramethyl Ester
CAS No.	75314-23-7
Molecular Formula	C20H21NO10S
Molecular Weight	467.45 g/mol
Synonyms	3-Ethyl 4,5,6,7-tetramethyl 2-amino-4,5-dihydrobenzo[b]thiophene-3,4,5,6,7-pentacarboxylate; 2-Amino-4,5-dihydrobenzo[b]thiophene-3,4,5,6,7-pentacarboxylic acid, 3-ethyl 4,5,6,7-tetramethyl ester; Ethyl tetramethyl 2-amino-4,5-dihydrobenzo[b]thiophene-3,4,5,6,7-pentacarboxylate; Benzo[b]thiophene pentacarboxylic acid ester derivative; CAS 75314-23-7
EINECS	Contact for details

Quality Control

Our production of 2-Amino-4,5-Dihydrobenzo[B]Thiophene-3,4,5,6,7-Pentacarboxylic Acid 3-Ethyl 4,5,6,7-Tetramethyl Ester adheres to stringent quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all critical specifications are provided and can be tailored to meet specific client or regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). The compound may be moisture-sensitive; keep the container tightly sealed when not in use. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 20 ppm

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