Description

7,9-Dimethyl-Pyrido[3',2':4,5]Thieno[3,2-D]Pyrimidin-4(1H)-One is a high-purity, heterocyclic organic compound serving as a critical advanced intermediate in pharmaceutical research and development. Its complex fused-ring structure makes it a valuable building block for synthesizing novel active pharmaceutical ingredients (APIs), particularly in therapeutic areas targeting specific enzymatic pathways. This compound is essential for R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new molecular entities.

Application

• Pharmaceutical Intermediate: Key synthetic precursor for the development of novel drug candidates, especially in kinase inhibitor research.
• Agrochemical Research: Building block for creating new active ingredients with potential herbicidal or pesticidal activity.
• Chemical Biology Probe: Used in academic and industrial research to study protein-ligand interactions and biological pathways.
• Material Science: Potential precursor for organic electronic materials due to its extended π-conjugated system.
• Contract Research & Manufacturing (CRO/CMO): Supplied to organizations engaged in custom synthesis and process scale-up services.

Basic Information

Product Name	7,9-Dimethyl-Pyrido[3',2':4,5]Thieno[3,2-D]Pyrimidin-4(1H)-One
CAS No.	55023-35-3
Molecular Formula	C12H9N3OS
Molecular Weight	243.28 g/mol
Synonyms	7,9-Dimethyl-1H-pyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-one; 4(1H)-Pyrido[3',2':4,5]thieno[3,2-d]pyrimidinone, 7,9-dimethyl-; 7,9-Dimethyl-4H-pyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-one; Thienopyridopyrimidinone derivative; CAS 55023-35-3
EINECS	Contact for details

Quality Control

Our production of 7,9-Dimethyl-Pyrido[3',2':4,5]Thieno[3,2-D]Pyrimidin-4(1H)-One adheres to stringent in-house quality protocols to ensure batch-to-batch consistency and high purity for research applications. Each lot is fully characterized and tested using advanced analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). The compound is light-sensitive (store away from light). Keep container tightly sealed in a dry environment to maintain stability.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.