Description

3-Butyl-2-Mercapto-5,6-Dimethyl-3H-Thieno[2,3-D]Pyrimidin-4-One is a high-purity, specialized heterocyclic organic compound with a unique thienopyrimidinone core structure. This compound matters as a critical advanced pharmaceutical intermediate and a versatile building block for the synthesis of novel bioactive molecules. It is primarily needed by research and development teams in the pharmaceutical, agrochemical, and material science industries for creating new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of potential drug candidates, particularly for central nervous system (CNS) and antiviral applications.
• Agrochemical Research: Used as a building block for developing new pesticides and herbicides with novel modes of action.
• Material Science: Investigated for the development of organic semiconductors, liquid crystals, and other functional organic materials due to its conjugated system.
• Chemical Biology & Proteomics: Acts as a reactive scaffold or a tag in the design of chemical probes for studying enzyme function and protein interactions.
• Academic & Contract Research: Employed in university and CRO laboratories for methodological development and exploratory synthesis in organic and medicinal chemistry.

Basic Information

Product Name	3-Butyl-2-Mercapto-5,6-Dimethyl-3H-Thieno[2,3-D]Pyrimidin-4-One
CAS No.	59898-61-2
Molecular Formula	C₁₄H₂₀N₂OS₂
Molecular Weight	296.45 g/mol
Synonyms	3-Butyl-2-mercapto-5,6-dimethyl-3H-thieno[2,3-d]pyrimidin-4-one; 3-Butyl-5,6-dimethyl-2-sulfanylidene-1,3-dihydrothieno[2,3-d]pyrimidin-4-one; 3-n-Butyl-2-mercapto-5,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-one; 59898-61-2; Thieno[2,3-d]pyrimidin-4(3H)-one, 3-butyl-2-mercapto-5,6-dimethyl-
EINECS	Contact for details

Quality Control

Our 3-Butyl-2-Mercapto-5,6-Dimethyl-3H-Thieno[2,3-D]Pyrimidin-4-One is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications and test results is provided with each shipment to guarantee compliance with your research and development requirements.

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). This compound is easily oxidized and should be handled under an inert atmosphere (e.g., nitrogen or argon) for long-term storage or when opening the primary container to maximize shelf life and stability.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
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.