Description

3-Amino-3,4-Dihydro-4-Oxothieno[3,2-D]Pyrimidine is a high-value heterocyclic building block and advanced pharmaceutical intermediate. This compound is critical for the synthesis of novel, biologically active molecules, particularly in medicinal chemistry and drug discovery programs. It is primarily sought after by research institutions and pharmaceutical companies developing new therapeutic agents, especially those targeting kinase inhibition and other enzymatic pathways.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly kinase inhibitors and other small-molecule therapeutics.
• Medicinal Chemistry Research: Used as a versatile scaffold for constructing compound libraries in high-throughput screening and structure-activity relationship (SAR) studies.
• Organic Synthesis Building Block: Employed in the construction of complex fused heterocyclic systems due to its reactive amino and carbonyl functional groups.
• Agrochemical Research: Potential intermediate in the development of new active ingredients for crop protection products.
• Material Science: Investigated for the synthesis of organic electronic materials and specialty polymers.

Basic Information

Product Name	3-Amino-3,4-Dihydro-4-Oxothieno[3,2-D]Pyrimidine
CAS No.	648859-53-4
Molecular Formula	C6H5N3OS
Molecular Weight	167.18 g/mol
Synonyms	3-Amino-4-oxo-3,4-dihydrothieno[3,2-d]pyrimidine; Thieno[3,2-d]pyrimidine-4(3H)-one, 3-amino-; 3-Aminothieno[3,2-d]pyrimidin-4(3H)-one; 3-Amino-4H-thieno[3,2-d]pyrimidin-4-one; 648859-53-4; 3-Amino-3,4-dihydro-4-oxothieno[3,2-d]pyrimidine
EINECS	Contact for details

Quality Control

Our 3-Amino-3,4-Dihydro-4-Oxothieno[3,2-D]Pyrimidine is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods (NMR, IR, MS), to ensure it meets the high standards required for research and development. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is light-sensitive (store away from light) and may be hygroscopic (moisture-sensitive). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 98.0%
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.