Description

Thieno[3,2-D]Pyrimidin-4(3H)-One is a high-value heterocyclic organic compound that serves as a critical synthetic intermediate and pharmacophore in advanced chemical research. This fused-ring system is prized for its structural similarity to purine bases, making it a versatile scaffold for developing novel active molecules. It is primarily sought after by pharmaceutical R&D teams and fine chemical manufacturers engaged in the synthesis of potential therapeutic agents, agrochemicals, and specialty materials.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of kinase inhibitors, antiviral agents, and other small-molecule drug candidates targeting various disease pathways.
• Agrochemical Research: Used in developing novel herbicides, fungicides, and plant growth regulators due to its bioactive heterocyclic core.
• Material Science: Investigated as a precursor for organic semiconductors, ligands for metal-organic frameworks (MOFs), and other functional materials.
• Biochemical Tool Compound: Serves as a core structure for designing enzyme inhibitors and molecular probes used in biochemical and pharmacological studies.
• Academic & Contract Research: Essential for synthetic organic chemistry research in universities and CROs (Contract Research Organizations) exploring new heterocyclic methodologies.

Basic Information

Product Name	Thieno[3,2-D]Pyrimidin-4(3H)-One
CAS No.	16234-10-9
Molecular Formula	C6H4N2OS
Molecular Weight	152.17 g/mol
Synonyms	4(3H)-Thieno[3,2-d]pyrimidinone; 3H-Thieno[3,2-d]pyrimidin-4-one; Thieno[3,2-d]pyrimidin-4(3H)-one; 4-Hydroxythieno[3,2-d]pyrimidine; 4-Oxo-3,4-dihydrothieno[3,2-d]pyrimidine; 16234-10-9; Thienopyrimidinone derivative
EINECS	Contact for details

Quality Control

Our production of Thieno[3,2-D]Pyrimidin-4(3H)-One adheres to stringent quality management protocols. Every batch is characterized and tested using advanced analytical techniques including HPLC, GC-MS, and NMR to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment. We support cGMP (current Good Manufacturing Practice) standards for pharmaceutical-grade material upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from incompatible materials. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
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.