Description

5,6-Dibromothieno[2,3-D]Pyrimidin-4(3H)-One is a high-value brominated heterocyclic building block of significant interest in advanced organic synthesis. This compound matters because it serves as a versatile and critical precursor for constructing complex molecular architectures, particularly in pharmaceutical and agrochemical research. It is primarily needed by R&D chemists and process development scientists working on novel active ingredients, where its unique fused-ring structure enables the introduction of key functional groups.

Application

• Pharmaceutical Intermediate: A key synthon in the development of kinase inhibitors, antiviral agents, and other small-molecule therapeutics.
• Agrochemical Research: Used in the synthesis of novel herbicides, fungicides, and plant growth regulators.
• Material Science: Serves as a precursor for organic electronic materials, such as organic semiconductors and light-emitting diodes (OLEDs).
• Chemical Biology: Employed as a molecular scaffold or probe in drug discovery and biochemical studies.
• Custom Synthesis: A starting material for contract research organizations (CROs) and CDMOs producing bespoke compounds for client projects.
• Academic Research: Utilized in universities and research institutes for methodological development and exploring new chemical reactions.

Basic Information

Product Name	5,6-Dibromothieno[2,3-D]Pyrimidin-4(3H)-One
CAS No.	1239460-82-2
Molecular Formula	C6H2Br2N2OS
Molecular Weight	325.96 g/mol
Synonyms	5,6-Dibromo-3,4-dihydrothieno[2,3-d]pyrimidin-4-one; 5,6-Dibromo-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidine; 5,6-Dibromothieno[2,3-d]pyrimidin-4(3H)-one; Thieno[2,3-d]pyrimidin-4(3H)-one, 5,6-dibromo-; 5,6-Dibromo-4-hydroxy-3,4-dihydrothieno[2,3-d]pyrimidine (tautomer)
EINECS	Contact for details

Quality Control

Our 5,6-Dibromothieno[2,3-D]Pyrimidin-4(3H)-One is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity for research and development applications. Each lot undergoes comprehensive analytical characterization, including HPLC for purity and NMR for structural confirmation. Certificates of Analysis (COA) detailing all specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic nature, the container should be kept sealed under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	White to off-white 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.