Description

(3-Ethyl-5,6-Dimethyl-4-Oxo-3,4-Dihydro-Thieno[2,3-D]Pyrimidin-2-Ylsulfanyl)-Acetic Acid is a high-purity, advanced pharmaceutical intermediate with a distinct thienopyrimidine scaffold. This compound matters as a critical building block in the synthesis of novel, potent drug candidates, particularly in therapeutic areas requiring targeted molecular design. It is primarily needed by research institutions and pharmaceutical companies engaged in the development of kinase inhibitors and other small-molecule therapeutics.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates targeting various disease pathways.
• Kinase Inhibitor Research: Used in the research and development of potent and selective kinase inhibitors due to its privileged thienopyrimidine core structure.
• Medicinal Chemistry: Employed in structure-activity relationship (SAR) studies and lead optimization programs to enhance drug efficacy and selectivity.
• Biochemical Research: Utilized as a reference standard or probe compound in biochemical assays to study enzyme function and inhibition.
• Custom Synthesis: A starting material for the custom synthesis of complex, target-specific molecules for preclinical and clinical research.

Basic Information

Product Name	(3-Ethyl-5,6-Dimethyl-4-Oxo-3,4-Dihydro-Thieno[2,3-D]Pyrimidin-2-Ylsulfanyl)-Acetic Acid
CAS No.	674808-72-1
Molecular Formula	C₁₂H₁₄N₂O₃S₂
Molecular Weight	298.38 g/mol
Synonyms	2-[(3-Ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio]acetic acid; (3-Ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)sulfanylacetic acid; Thieno[2,3-d]pyrimidine-2-thioacetic acid derivative; CAS 674808-72-1
EINECS	Contact for details

Quality Control

Our production of (3-Ethyl-5,6-Dimethyl-4-Oxo-3,4-Dihydro-Thieno[2,3-D]Pyrimidin-2-Ylsulfanyl)-Acetic Acid adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure compliance with research and pharmaceutical-grade standards. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 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 (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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