Description

Thieno[2,3-b]pyridin-5-amine (9CI) is a high-purity heterocyclic organic compound, identified by CAS NO 21344-28-5, that serves as a critical building block in advanced chemical synthesis. This specialized amine derivative is valued for its unique fused-ring structure, which imparts specific electronic and steric properties essential for developing novel functional materials. It is primarily sought after by research and development teams in the pharmaceutical and agrochemical sectors for the creation of new active ingredients and intermediates.

Application

Thieno[2,3-b]pyridin-5-amine is a versatile intermediate with significant utility in research-driven industries. Its applications include:

• Pharmaceutical Research: A key scaffold for the synthesis of novel drug candidates, particularly in oncology and central nervous system (CNS) therapeutic areas.
• Agrochemical Development: Used in creating advanced intermediates for new-generation herbicides, fungicides, and insecticides.
• Material Science: Serves as a precursor for organic semiconductors, conductive polymers, and other functional organic electronic materials.
• Chemical Synthesis: An important building block for constructing complex heterocyclic compounds in academic and industrial research laboratories.
• Ligand & Catalyst Design: Utilized in the development of specialized ligands for catalysis and metal-organic frameworks (MOFs).

Basic Information

Product Name	Thieno[2,3-b]pyridin-5-amine (9CI)
CAS No.	21344-28-5
Molecular Formula	C7H6N2S
Molecular Weight	150.20 g/mol
Synonyms	5-Aminothieno[2,3-b]pyridine; Thieno[2,3-b]pyridin-5-ylamine; 5-Thieno[2,3-b]pyridinylamine; 21344-28-5; Thienopyridin-5-amine; 5-Amino-2,3-thienopyridine; 5-Aminothienopyridine; Thieno[2,3-b]pyridin-5-amine
EINECS	Contact for details

Quality Control

Our Thieno[2,3-b]pyridin-5-amine is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC, NMR, and mass spectrometry, to confirm identity and purity. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment. We adhere to cGMP principles where applicable to support our clients' regulatory and research requirements.

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 prevent moisture absorption, which may affect stability and performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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