Description

Benzo[B]Thiophene-2-Carboxylic Acid, 4-Amino- (9Ci) is a high-purity, specialized heterocyclic building block of significant interest in advanced organic synthesis. This compound matters for its role as a key intermediate in the development of novel pharmaceuticals and agrochemicals, particularly those targeting specific biological pathways. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of novel drug candidates, particularly those with thiophene-based scaffolds for therapeutic applications.
• Agrochemical Research: Used in the development of new active ingredients for crop protection products, leveraging its unique heterocyclic structure.
• Organic Light-Emitting Diodes (OLEDs): Serves as a building block for electron-transport or emissive materials in advanced display and lighting technologies.
• Material Science: Employed in the synthesis of specialized polymers and organic semiconductors with tailored electronic properties.
• Chemical Biology Probes: Utilized as a core structure for developing fluorescent tags or molecular probes to study biological processes.
• Academic & Industrial R&D: A valuable reagent for methodological development and exploring new chemical reactions in heterocyclic chemistry.

Basic Information

Product Name	Benzo[B]Thiophene-2-Carboxylic Acid, 4-Amino- (9Ci)
CAS No.	478076-38-9
Molecular Formula	C9H7NO2S
Molecular Weight	193.22 g/mol
Synonyms	4-Aminobenzo[b]thiophene-2-carboxylic acid; 4-Amino-1-benzothiophene-2-carboxylic acid; 4-Amino-benzo[b]thiophene-2-carboxylic acid; 2-Carboxy-4-aminobenzo[b]thiophene; 4-Amino-2-benzothiophenecarboxylic acid; 4-Aminothianaphthene-2-carboxylic acid
EINECS	Contact for details

Quality Control

Our Benzo[B]Thiophene-2-Carboxylic Acid, 4-Amino- (9Ci) is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR/IR for structural confirmation, to ensure it meets the high standards required for research and development. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance and regulatory documentation.

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 after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
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.