Description

5-Thien-2-Ylthieno[2,3-D]Pyrimidin-4(3H)-One is a high-value heterocyclic building block and advanced pharmaceutical intermediate. This compound is critical for research and development in medicinal chemistry, particularly in the synthesis of novel therapeutic agents. It is primarily sought after by pharmaceutical R&D laboratories, agrochemical innovators, and specialty chemical manufacturers for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of potential kinase inhibitors and other biologically active molecules.
• Medicinal Chemistry Research: Used in hit-to-lead optimization and structure-activity relationship (SAR) studies for new drug candidates.
• Agrochemical Development: Serves as a precursor in the research of new pesticides and herbicides with specific modes of action.
• Organic Electronic Materials: Investigated as a core component in the development of organic semiconductors and conductive polymers due to its fused thiophene-pyrimidine structure.
• Chemical Biology Probes: Utilized in the design and synthesis of molecular probes for studying enzyme function and cellular pathways.

Basic Information

Product Name	5-Thien-2-Ylthieno[2,3-D]Pyrimidin-4(3H)-One
CAS No.	215928-54-4
Molecular Formula	C10H6N2OS2
Molecular Weight	234.30 g/mol
Synonyms	5-(Thiophen-2-yl)thieno[2,3-d]pyrimidin-4(3H)-one; 4(3H)-Thieno[2,3-d]pyrimidinone, 5-(2-thienyl)-; 5-(2-Thienyl)thieno[2,3-d]pyrimidin-4(3H)-one; 5-(Thien-2-yl)thieno[2,3-d]pyrimidin-4-ol (tautomer); Thieno[2,3-d]pyrimidine derivative; CAS 215928-54-4
EINECS	Contact for details

Quality Control

Our production of 5-Thien-2-Ylthieno[2,3-D]Pyrimidin-4(3H)-One adheres to stringent internal quality standards to ensure batch-to-batch consistency and high purity for research applications. All materials are fully characterized using advanced analytical techniques including NMR, HPLC, and MS. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The compound is light-sensitive and should be handled under appropriate conditions to maintain stability.

Specification

Item	Specification
Appearance	Off-white to light yellow powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference
Purity (HPLC)	≥ 97.0%
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.