Description

5-Chloro-Benzo[B]Thiophene-2-Carboxylic Acid is a high-purity, versatile heterocyclic building block of significant importance in advanced organic synthesis. Its core value lies in its functionalized structure, which serves as a critical precursor for the development of complex molecules with tailored properties. This compound is primarily needed by research institutions and industrial R&D departments in the pharmaceutical, agrochemical, and material science sectors for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of new drug candidates, particularly for molecules targeting central nervous system (CNS) disorders, inflammation, and oncology.
• Agrochemical Synthesis: Serves as a foundational structure for developing novel herbicides, fungicides, and insecticides with improved efficacy and environmental profiles.
• Material Science Research: Used in the synthesis of organic semiconductors, liquid crystals, and advanced polymers due to its electron-rich thiophene core.
• Chemical Biology Probes: Employed in the design and synthesis of molecular probes and inhibitors for studying enzyme function and biological pathways.
• Custom Synthesis & Contract Manufacturing: A vital starting material for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) serving the life sciences industry.

Basic Information

Product Name	5-Chloro-Benzo[B]Thiophene-2-Carboxylic Acid
CAS No.	13771-75-0
Molecular Formula	C9H5ClO2S
Molecular Weight	212.65 g/mol
Synonyms	5-Chlorobenzo[b]thiophene-2-carboxylic acid; 5-Chloro-1-benzothiophene-2-carboxylic Acid; 2-Carboxy-5-chlorobenzo[b]thiophene; 5-Chloro-benzo[b]thiophene-2-carboxylic acid; 5-Chloro-2-benzothiophenecarboxylic acid; 5-Chloro-2-carboxybenzo[b]thiophene; 13771-75-0 (CAS)
EINECS	Contact for details

Quality Control

Our 5-Chloro-Benzo[B]Thiophene-2-Carboxylic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical quality attributes. Our commitment to cGMP principles and adherence to ISO standards ensure reliable supply for your most demanding research and development projects.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider storing under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	< 20 ppm

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