Description

5-Methyl-4,5,6,7-Tetrahydro-1-Benzothiophene-2-Carboxylic Acid is a high-value, heterocyclic carboxylic acid derivative that serves as a critical synthetic intermediate in advanced organic chemistry. Its unique fused ring structure containing sulfur makes it a versatile building block for constructing complex molecules with tailored properties. This compound is primarily sought after by research and development teams in the pharmaceutical and agrochemical sectors for the synthesis of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders or possessing anti-inflammatory properties.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides, leveraging its benzothiophene core.
• Material Science Research: Serves as a building block for organic semiconductors, ligands for catalysis, and other functional organic materials.
• Chemical Research & Development: Employed in academic and industrial labs for method development, heterocyclic chemistry studies, and library synthesis for high-throughput screening.
• Fine Chemical Production: Acts as a specialized intermediate in the custom synthesis of complex, high-value chemicals for various industrial applications.

Basic Information

Product Name	5-Methyl-4,5,6,7-Tetrahydro-1-Benzothiophene-2-Carboxylic Acid
CAS No.	588698-05-9
Molecular Formula	C11H14O2S
Molecular Weight	210.29 g/mol
Synonyms	5-Methyl-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxylic acid; 5-Methyl-4,5,6,7-tetrahydro-1-benzothiophene-2-carboxylic acid; 2-Carboxy-5-methyl-4,5,6,7-tetrahydrobenzo[b]thiophene; 5-Methyl-4,5,6,7-tetrahydro-2-benzothiophenecarboxylic acid; 588698-05-9; Tetrahydrobenzothiophene carboxylic acid derivative
EINECS	Contact for details

Quality Control

We maintain stringent quality control protocols for all our chemical intermediates. Production follows current Good Manufacturing Practices (cGMP) where applicable, and each batch is accompanied by a comprehensive Certificate of Analysis (COA). Our standard pharmaceutical-grade material typically meets a purity specification of ≥98% (by HPLC), ensuring consistency and reliability for your critical synthesis workflows.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong oxidizing agents and bases. 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%
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.