Description

4-Methylbenzo(B)Thiophene-2-Carboxylicacid is a high-purity organic building block and key synthetic intermediate of significant commercial and research importance. This compound is valued for its role in constructing complex heterocyclic systems, particularly in advanced material science and pharmaceutical development. It is primarily sought by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for applications in medicinal chemistry and organic synthesis.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and other therapeutic areas.
• Agrochemical Synthesis: Used in the development of advanced pesticides and herbicides, leveraging its heterocyclic structure for biological activity.
• Material Science Research: Serves as a building block for organic semiconductors, conductive polymers, and other functional materials due to its electron-rich thiophene core.
• Organic Light-Emitting Diodes (OLEDs): Acts as a key component in the synthesis of emissive or charge-transport layers for display and lighting technologies.
• Dye and Pigment Manufacturing: Utilized in the production of specialized dyes and pigments where the benzo[b]thiophene moiety imparts specific coloristic and stability properties.
• Academic & Industrial R&D: Employed in method development and exploratory chemistry for creating new chemical entities and libraries.

Basic Information

Item	Details
Product Name	4-Methylbenzo(B)Thiophene-2-Carboxylicacid
CAS No.	1735-13-3
Molecular Formula	C11H8O2S
Molecular Weight	204.24 g/mol
Synonyms	4-Methylbenzo[b]thiophene-2-carboxylic acid; 4-Methyl-1-benzothiophene-2-carboxylic acid; 2-Carboxy-4-methylbenzo[b]thiophene; 4-Methyl-2-benzothiophenecarboxylic acid; 4-Methylbenzo[b]thienyl-2-carboxylic acid; 4-Methylbenzothiophene-2-carboxylic acid; 1735-13-3; 4-Methylbenzo(B)Thiophene-2-Carboxylicacid
EINECS	Contact for details

Quality Control

Our 4-Methylbenzo(B)Thiophene-2-Carboxylicacid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and tests for residual solvents and heavy metals to ensure it meets the high standards required for research and industrial synthesis. Certificates of Analysis (COA) are provided with every shipment and are available upon request.

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 (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment to prevent degradation. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
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.