Description

Benzo[B]Thiophene-4-Carboxylic Acid, 7-Amino-, Methyl Ester (9Ci) is a high-purity, multifunctional heterocyclic building block essential for advanced organic synthesis. This compound matters because it serves as a critical intermediate in the development of novel active pharmaceutical ingredients (APIs) and functional materials. It is primarily needed by research and development chemists in the pharmaceutical, agrochemical, and material science industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of potential drug candidates, particularly those targeting central nervous system (CNS) disorders or possessing anti-inflammatory properties.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging its fused thiophene ring system.
• Material Science: Serves as a monomer or functional unit in the creation of organic semiconductors, conductive polymers, and advanced organic light-emitting diodes (OLEDs).
• Dye and Pigment Synthesis: Acts as a building block for novel chromophores and fluorophores due to its conjugated system and amino functionality.
• Chemical Biology Probes: Utilized in the design and synthesis of molecular probes for studying biological processes and enzyme inhibition.
• Academic & Contract Research: A valuable reagent for methodological development and exploratory chemistry in academic and industrial R&D laboratories.

Basic Information

Product Name	Benzo[B]Thiophene-4-Carboxylic Acid, 7-Amino-, Methyl Ester (9Ci)
CAS No.	157252-28-3
Molecular Formula	C11H9NO2S
Molecular Weight	219.26 g/mol
Synonyms	7-Aminobenzo[b]thiophene-4-carboxylic acid methyl ester; Methyl 7-aminobenzo[b]thiophene-4-carboxylate; 7-Amino-4-(methoxycarbonyl)benzo[b]thiophene; 4-(Methoxycarbonyl)benzo[b]thiophen-7-amine; 7-Amino-benzo[b]thiophene-4-carboxylic acid methyl ester; 157252-28-3; Benzo[b]thiophene-4-carboxylic acid, 7-amino-, methyl ester
EINECS	Contact for details

Quality Control

Our Benzo[B]Thiophene-4-Carboxylic Acid, 7-Amino-, Methyl Ester (9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. Certificates of Analysis (COA) with detailed chromatographic data are provided with every shipment to support your quality assurance and regulatory needs.

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 to exclude moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥97.0% (Area %)
Water Content (KF)	≤1.0%
Residue on Ignition	≤0.5%

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