Description

Benzo[B]Thiophene-2-Carboxylic Acid, 5-(1,1-Dimethylethyl) is a high-purity organic building block featuring a thiophene core substituted with a carboxylic acid group and a tert-butyl moiety. This compound is valued for its role as a versatile synthetic intermediate in advanced organic synthesis and pharmaceutical research. It is primarily sought by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for constructing complex molecular architectures.

Application

• As a key pharmaceutical intermediate in the synthesis of novel active pharmaceutical ingredients (APIs) and drug candidates.
• Utilized in agrochemical research for the development of new herbicides, fungicides, and insecticides.
• Serves as a specialized organic building block for constructing complex heterocyclic compounds and functional materials.
• Potential use in material science for the development of organic semiconductors and advanced polymers.
• Employed in academic and industrial R&D for method development and exploratory chemistry.
• Acts as a precursor for ligand synthesis in catalysis and coordination chemistry.

Basic Information

Product Name	Benzo[B]Thiophene-2-Carboxylic Acid, 5-(1,1-Dimethylethyl)
CAS No.	126231-21-8
Molecular Formula	C13H14O2S
Molecular Weight	234.31 g/mol
Synonyms	5-tert-Butylbenzo[b]thiophene-2-carboxylic acid; 5-(tert-Butyl)-1-benzothiophene-2-carboxylic acid; 5-tert-Butyl-1-benzothiophene-2-carboxylic acid; 2-Carboxy-5-tert-butylbenzo[b]thiophene; 5-tert-Butylbenzo[b]thiophene-2-carboxylic Acid; 5-(1,1-Dimethylethyl)benzo[b]thiophene-2-carboxylic acid
EINECS	Contact for details

Quality Control

Our Benzo[B]Thiophene-2-Carboxylic Acid, 5-(1,1-Dimethylethyl) is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all specifications are provided and available upon request to support your quality assurance protocols.

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 acids and organic solvents. The container should be kept tightly sealed to protect from moisture.

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%

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