Description

5-Hydroxybenzo[B]Thiophene-2-Carboxylic Acid is a high-purity organic building block and key synthetic intermediate of significant commercial and research interest. Its unique fused-ring structure containing both hydroxyl and carboxylic acid functional groups makes it a versatile precursor for advanced chemical synthesis. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science sectors developing novel active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: Serves as a critical building block in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders, inflammation, and metabolic diseases.
• Agrochemical Synthesis: Used in the research and development of new-generation herbicides, fungicides, and plant growth regulators, leveraging its heterocyclic core.
• Material Science Precursor: Acts as a monomer or functionalizing agent in the production of specialty polymers, organic semiconductors, and liquid crystals.
• Chemical Research & Development: Employed in academic and industrial R&D labs for exploring new organic reactions, catalysis, and as a scaffold for combinatorial chemistry libraries.
• Dye & Pigment Manufacturing: Utilized in the synthesis of complex organic dyes and pigments due to its benzo[b]thiophene backbone which can influence color and light-fastness properties.

Basic Information

Product Name	5-Hydroxybenzo[B]Thiophene-2-Carboxylic Acid
CAS No.	95094-87-4
Molecular Formula	C9H6O3S
Molecular Weight	194.21 g/mol
Synonyms	5-Hydroxybenzo[b]thiophene-2-carboxylic acid; 5-Hydroxy-1-benzothiophene-2-carboxylic acid; 2-Carboxy-5-hydroxybenzo[b]thiophene; 5-Hydroxybenzo[b]thiophene-2-carboxylate; 5-Hydroxy-2-benzothiophenecarboxylic acid; 5-Hydroxy-2-thianaphthenecarboxylic acid; 95094-87-4
EINECS	Contact for details

Quality Control

Our production of 5-Hydroxybenzo[B]Thiophene-2-Carboxylic Acid adheres to stringent quality management protocols. Every batch is subjected to comprehensive analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR spectroscopy. We provide a detailed Certificate of Analysis (COA) with each shipment, ensuring traceability and compliance with your specific research or manufacturing 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). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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