Description

3-(2-Hydroxyethyl)-2,5,6-Trimethylthieno[2,3-D]Pyrimidin-4(3H)-One is a high-purity, heterocyclic organic compound belonging to the thienopyrimidinone class, serving as a critical advanced pharmaceutical intermediate. Its value lies in its role as a sophisticated building block for the synthesis of novel active pharmaceutical ingredients (APIs) and other fine chemicals, enabling complex molecular architectures. This product is essential for research and development chemists, process development scientists, and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking reliable, high-quality intermediates.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel drug candidates, particularly for therapeutic areas requiring complex heterocyclic cores.
• Agrochemical Research: Used in the development of new active ingredients for crop protection products, leveraging its unique thienopyrimidinone structure.
• Material Science Precursor: Serves as a monomer or functional component in the research of advanced organic electronic materials and polymers.
• Chemical Synthesis Reagent: Employed in academic and industrial R&D laboratories for constructing complex molecular libraries and exploring new chemical reactions.
• Biochemical Probe Development: Utilized as a scaffold for creating molecular probes to study biological pathways and enzyme interactions.

Basic Information

Product Name	3-(2-Hydroxyethyl)-2,5,6-Trimethylthieno[2,3-D]Pyrimidin-4(3H)-One
CAS No.	315239-29-3
Molecular Formula	C11H14N2O2S
Molecular Weight	238.31 g/mol
Synonyms	2,5,6-Trimethyl-3-(2-hydroxyethyl)thieno[2,3-d]pyrimidin-4(3H)-one; 3-(2-Hydroxyethyl)-2,5,6-trimethyl-4H-thieno[2,3-d]pyrimidin-4-one; Thieno[2,3-d]pyrimidin-4(3H)-one, 3-(2-hydroxyethyl)-2,5,6-trimethyl-; 4(3H)-Thieno[2,3-d]pyrimidinone, 3-(2-hydroxyethyl)-2,5,6-trimethyl-
EINECS	Contact for details

Quality Control

Our 3-(2-Hydroxyethyl)-2,5,6-Trimethylthieno[2,3-D]Pyrimidin-4(3H)-One is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. Certificates of Analysis (COA) with detailed specifications are provided for each lot to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which may affect product stability and performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
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.