Description

7-Chloro-3-Hydroxybenzo[B]Thiophene-2-Carboxylic Acid is a high-purity, multifunctional heterocyclic building block of significant commercial and research interest. Its unique molecular structure, featuring fused thiophene and benzoic acid rings with chloro and hydroxy substituents, makes it a critical intermediate in advanced organic synthesis. This compound is essential for pharmaceutical R&D teams, agrochemical manufacturers, and material scientists developing novel active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly in therapeutic areas requiring complex heterocyclic scaffolds.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and pesticides, leveraging its bioactive thiophene core.
• Material Science Research: Serves as a building block for organic electronic materials, such as semiconductors and conductive polymers.
• Dye & Pigment Manufacturing: Acts as an intermediate for producing specialized dyes and pigments with enhanced light-fastness and color properties.
• Ligand & Catalyst Development: Utilized in organometallic chemistry to create novel ligands for catalytic systems.
• Academic & Industrial R&D: A valuable reagent for methodological studies and the exploration of new chemical reactions involving halogenated heterocycles.

Basic Information

Product Name	7-Chloro-3-Hydroxybenzo[B]Thiophene-2-Carboxylic Acid
CAS No.	90407-11-7
Molecular Formula	C9H5ClO3S
Molecular Weight	228.65 g/mol
Synonyms	7-Chloro-3-hydroxy-1-benzothiophene-2-carboxylic acid; 7-Chloro-3-hydroxybenzo[b]thiophene-2-carboxylic acid; 2-Carboxy-7-chloro-3-hydroxybenzo[b]thiophene; 7-Chloro-3-hydroxy-2-benzothiophenecarboxylic acid; 90407-11-7; Benzo[b]thiophene-2-carboxylic acid, 7-chloro-3-hydroxy-; 7-Chloro-3-hydroxybenzo(b)thiophene-2-carboxylic acid
EINECS	Contact for details

Quality Control

Our production of 7-Chloro-3-Hydroxybenzo[B]Thiophene-2-Carboxylic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and residual solvent analysis. We provide full traceability and Certificates of Analysis (COA) are available for all shipments, ensuring compliance with your internal specifications and research requirements.

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). Keep away from incompatible materials such as strong acids and oxidizing agents. The container must be kept tightly sealed due to the compound's sensitivity to light and potential reactivity.

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%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%

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