Description

Thieno[2,3-D]Pyrimidin-4(1H)-One, 2-Ethyl-5,6-Dimethyl- (9Ci) 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 agrochemicals, enabling research and development in targeted therapies. This product is essential for R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries seeking to develop new molecules with potential biological activity.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in oncology, antiviral, and central nervous system (CNS) therapeutic areas.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging its heterocyclic core for bioactivity.
• Chemical Biology Probe: Serves as a scaffold for creating tool compounds to study enzyme function and biological pathways in academic and industrial research.
• Material Science Precursor: Potential intermediate for the synthesis of organic electronic materials or specialty polymers requiring specific heterocyclic structures.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for client-specific synthesis projects requiring high-purity, complex intermediates.

Basic Information

Product Name	Thieno[2,3-D]Pyrimidin-4(1H)-One, 2-Ethyl-5,6-Dimethyl- (9Ci)
CAS No.	433716-50-8
Molecular Formula	C10H12N2OS
Molecular Weight	208.28 g/mol
Synonyms	2-Ethyl-5,6-dimethyl-1H-thieno[2,3-d]pyrimidin-4-one; 2-Ethyl-5,6-dimethylthieno[2,3-d]pyrimidin-4(1H)-one; 433716-50-8; 2-Ethyl-5,6-dimethyl-4H-thieno[2,3-d]pyrimidin-4-one; Thieno[2,3-d]pyrimidin-4(1H)-one, 2-ethyl-5,6-dimethyl-; 5,6-Dimethyl-2-ethyl-1H-thieno[2,3-d]pyrimidin-4-one
EINECS	Contact for details

Quality Control

Every batch of Thieno[2,3-D]Pyrimidin-4(1H)-One, 2-Ethyl-5,6-Dimethyl- (9Ci) is manufactured under strict quality management systems. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request. We support development needs with material suitable for research and GMP (Good Manufacturing Practice) starting material synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (typically 15-25°C). Keep away from incompatible materials. For long-term storage, consider storing under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 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.