Description

Benzo[B]Thiophene-2-Carboxylic Acid, 3-Chloro-5-Methoxy-6-Methyl-, 1-Methylethyl Ester, 1-Oxide is a high-purity, advanced pharmaceutical intermediate with a complex heterocyclic structure. This compound is critical for research and development in medicinal chemistry, particularly in the synthesis of novel active pharmaceutical ingredients (APIs). It is primarily sought by pharmaceutical R&D laboratories and fine chemical manufacturers for the development of new therapeutic agents.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel drug candidates, particularly those targeting complex biological pathways.
• Medicinal Chemistry Research: Used in structure-activity relationship (SAR) studies and lead optimization processes in drug discovery.
• Active Pharmaceutical Ingredient (API) Development: Serves as a precursor in the multi-step synthesis of potential APIs for various therapeutic areas.
• Chemical Reference Standard: Employed as a high-purity standard for analytical method development and validation in quality control laboratories.
• Organic Synthesis: Utilized in academic and industrial research for constructing complex benzo[b]thiophene-based molecular architectures.

Basic Information

Product Name	Benzo[B]Thiophene-2-Carboxylic Acid, 3-Chloro-5-Methoxy-6-Methyl-, 1-Methylethyl Ester, 1-Oxide
CAS No.	809281-52-5
Molecular Formula	C15H17ClO4S
Molecular Weight	328.81 g/mol
Synonyms	3-Chloro-5-methoxy-6-methylbenzo[b]thiophene-2-carboxylic acid isopropyl ester 1-oxide; Isopropyl 3-chloro-5-methoxy-6-methyl-1-oxido-1-benzothiophene-2-carboxylate; 1-Methylethyl 3-chloro-5-methoxy-6-methylbenzo[b]thiophene-2-carboxylate 1-oxide; 809281-52-5; Benzo[b]thiophene-2-carboxylic acid, 3-chloro-5-methoxy-6-methyl-, 1-methylethyl ester, 1-oxide; 3-Chloro-5-methoxy-6-methyl-1-oxido-1-benzothiophene-2-carboxylic acid 1-methylethyl ester
EINECS	Contact for details

Quality Control

Our production of Benzo[B]Thiophene-2-Carboxylic Acid, 3-Chloro-5-Methoxy-6-Methyl-, 1-Methylethyl Ester, 1-Oxide adheres to stringent quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications. We support cGMP standards for pharmaceutical intermediate applications.

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). This product is hygroscopic (moisture-sensitive) and must be kept under dry, inert conditions to prevent degradation. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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