Description

4-Thioxo-3,4-Dihydropyrido[2,3-D]Pyrimidin-2(1H)-One is a heterocyclic organic compound featuring a fused pyrido[2,3-d]pyrimidine scaffold with a thioxo functional group. This specialized structure makes it a valuable intermediate and building block in advanced organic synthesis, particularly for the development of novel pharmacologically active molecules. It is primarily sought by research and development teams in the pharmaceutical, agrochemical, and fine chemical industries for creating new compounds with targeted biological activities.

Application

This compound serves as a versatile chemical intermediate with significant potential across several high-value research and production domains.

• Pharmaceutical Research & Development: A key synthetic precursor for the design and synthesis of novel drug candidates, particularly those targeting kinase inhibition, cancer therapies, and other disease pathways.
• Agrochemical Innovation: Used in the research and development of new active ingredients for crop protection products, such as herbicides, fungicides, and insecticides.
• Fine Chemical Synthesis: An important building block for creating complex, high-value specialty chemicals used in various industrial and research applications.
• Biochemical Tool Development: Employed in the synthesis of chemical probes and inhibitors for studying enzymatic processes and biological mechanisms in academic and industrial labs.
• Material Science Research: Investigated as a potential precursor for the synthesis of organic electronic materials or ligands for catalytic systems.

Basic Information

Product Name	4-Thioxo-3,4-Dihydropyrido[2,3-D]Pyrimidin-2(1H)-One
CAS No.	91996-78-0
Molecular Formula	C7H5N3OS
Molecular Weight	179.20 g/mol
Synonyms	4-Thioxo-1,4-dihydropyrido[2,3-d]pyrimidin-2(3H)-one; 4-Thioxo-3,4-dihydro-1H-pyrido[2,3-d]pyrimidin-2-one; 2H-Pyrido[2,3-d]pyrimidine-2,4(1H,3H)-dithione; 4-Mercapto-2-oxo-1,2-dihydropyrido[2,3-d]pyrimidine; 4-Thioxo-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidin-2-one; 91996-78-0; Pyrido[2,3-d]pyrimidine-2,4(1H,3H)-dithione
EINECS	Contact for details

Quality Control

Our production of 4-Thioxo-3,4-Dihydropyrido[2,3-D]Pyrimidin-2(1H)-One adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide full traceability and support our products with detailed Certificates of Analysis (COA) upon request, confirming compliance with agreed specifications for research and development use.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at 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	Yellow to light brown powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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