Description

Thieno[2,3-D]Pyrimidine-3(4H)-Acetonitrile, 6-Ethyl-4-Oxo- (9Ci) is a high-value heterocyclic building block and advanced pharmaceutical intermediate. This compound is critical for the synthesis of novel small molecule therapeutics, particularly in kinase inhibitor research and development. It is primarily utilized by pharmaceutical R&D laboratories, fine chemical manufacturers, and academic research institutions focused on medicinal chemistry and drug discovery.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of targeted kinase inhibitors for oncology and inflammatory disease applications.
• Medicinal Chemistry Research: Serves as a versatile scaffold for constructing compound libraries in high-throughput screening and structure-activity relationship (SAR) studies.
• Chemical Biology Probes: Used in the development of chemical probes to study specific enzyme functions and biological pathways.
• Fine Chemical Synthesis: Employed in multi-step organic synthesis to create complex molecules with potential biological activity.
• Contract Research & Manufacturing (CRO/CMO): Supplied to organizations specializing in custom synthesis and process development for clinical trial materials.

Basic Information

Product Name	Thieno[2,3-D]Pyrimidine-3(4H)-Acetonitrile, 6-Ethyl-4-Oxo- (9Ci)
CAS No.	686333-94-8
Molecular Formula	C10H9N3OS
Molecular Weight	219.26 g/mol
Synonyms	6-Ethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidine-3-acetonitrile; 6-Ethyl-4-oxo-4H-thieno[2,3-d]pyrimidine-3-acetonitrile; 3-(Cyanomethyl)-6-ethyl-4H-thieno[2,3-d]pyrimidin-4-one; 6-Ethyl-4-oxothieno[2,3-d]pyrimidine-3-acetonitrile; Thieno[2,3-d]pyrimidine-3-acetonitrile, 6-ethyl-4-oxo-; CAS 686333-94-8
EINECS	Contact for details

Quality Control

Our production of Thieno[2,3-D]Pyrimidine-3(4H)-Acetonitrile, 6-Ethyl-4-Oxo- (9Ci) adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity for sensitive research and development applications. All materials are accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We support compliance with cGMP and ISO 9001 standards for pharmaceutical intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). The compound may be hygroscopic; keep the container tightly sealed under an inert atmosphere if specified. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 1.0%
Total Impurities (HPLC)	≤ 3.0%

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