Description

1H-Thieno[2,3-D]Imidazol-2(3H)-One CAS NO 71309-43-8 is a high-purity heterocyclic organic compound featuring a fused thienoimidazolone structure, serving as a critical advanced pharmaceutical intermediate. Its molecular architecture makes it a valuable synthon for constructing complex bioactive molecules, particularly in medicinal chemistry. This compound is essential for research and development laboratories and production facilities in the pharmaceutical and agrochemical sectors seeking to develop novel active ingredients.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and other therapeutic areas.
• Agrochemical Synthesis: Used in the research and development of new pesticides and herbicides, leveraging its heterocyclic core for biological activity.
• Organic Light-Emitting Diode (OLED) Materials: Serves as a precursor or electron-transport material in the development of advanced organic electronic components.
• Coordination Chemistry & Ligand Synthesis: The imidazolone moiety can act as a ligand for metal complexes used in catalysis or material science.
• Academic & Industrial R&D: A valuable compound for methodological studies in organic synthesis and heterocyclic chemistry.
• Specialty Chemical Production: Employed in the manufacture of dyes, pigments, and other performance chemicals requiring a specific fused-ring scaffold.

Basic Information

Product Name	1H-Thieno[2,3-D]Imidazol-2(3H)-One
CAS No.	71309-43-8
Molecular Formula	C5H4N2OS
Molecular Weight	140.16 g/mol
Synonyms	Thieno[2,3-d]imidazol-2(3H)-one; 1H-Thieno[2,3-d]imidazol-2-one; 2,3-Dihydro-1H-thieno[2,3-d]imidazol-2-one; 3H-Thieno[2,3-d]imidazol-2-one; Thienoimidazolone; 71309-43-8; 2-Thioxo-2,3-dihydro-1H-thieno[2,3-d]imidazole (tautomer)
EINECS	Contact for details

Quality Control

Our production of 1H-Thieno[2,3-D]Imidazol-2(3H)-One adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and residual solvent analysis. We provide a detailed Certificate of Analysis (COA) with each shipment, ensuring traceability and compliance with your internal specifications and cGMP guidelines where applicable.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Complies with ICH Q3C guidelines

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