Description

Thieno[2,3-D]Pyrimidin-4(1H)-One, 5,6-Dimethyl-2-[[2-Oxo-2-(2-Thienyl)Ethyl]Thio]- (9Ci) is a high-purity, advanced pharmaceutical intermediate with a complex heterocyclic structure. This compound is valued for its role as a critical building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly in therapeutic areas requiring sophisticated molecular scaffolds. It is primarily sought by research organizations, contract development and manufacturing organizations (CDMOs), and pharmaceutical companies engaged in drug discovery and process development.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of potential drug candidates targeting various diseases.
• Medicinal Chemistry Research: Used in structure-activity relationship (SAR) studies and lead optimization programs due to its thienopyrimidinone core.
• Chemical Biology Probes: Employed in the development of tool compounds for studying biological pathways and target validation.
• Custom Synthesis: A starting material for the contract manufacturing of specialized, non-commercial compounds for client-specific R&D projects.
• Library Synthesis: Utilized in the generation of diverse compound libraries for high-throughput screening in drug discovery.

Basic Information

Product Name	Thieno[2,3-D]Pyrimidin-4(1H)-One, 5,6-Dimethyl-2-[[2-Oxo-2-(2-Thienyl)Ethyl]Thio]- (9Ci)
CAS No.	606107-45-3
Molecular Formula	C14H14N2O2S2
Molecular Weight	306.40 g/mol
Synonyms	5,6-Dimethyl-2-[(2-oxo-2-thiophen-2-ylethyl)sulfanyl]thieno[2,3-d]pyrimidin-4(1H)-one; 2-[[(5,6-Dimethyl-4-oxo-1,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio]methyl]-1-(2-thienyl)ethanone; Thieno[2,3-d]pyrimidin-4(1H)-one, 5,6-dimethyl-2-[[2-oxo-2-(2-thienyl)ethyl]thio]-; CAS 606107-45-3
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality management systems. Every batch is characterized and tested using advanced analytical techniques including HPLC, GC, NMR, and MS to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications and test results is provided with each shipment. We support our clients' regulatory needs with full traceability and documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). The product should be kept under an inert atmosphere if long-term storage is required to maintain stability.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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