Description

2-Mercapto-3,5,6-Trimethylthieno[2,3-D]Pyrimidin-4(3H)-One is a specialized heterocyclic compound that serves as a critical building block in advanced organic synthesis. Its unique fused thienopyrimidine structure makes it a valuable intermediate for developing novel active pharmaceutical ingredients (APIs) and functional materials. This compound is primarily sought by research and development teams in the pharmaceutical, agrochemical, and material science industries for creating compounds with specific biological or electronic properties.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly those targeting specific enzyme pathways.
• Agrochemical Research: Used in developing new classes of herbicides, fungicides, or plant growth regulators.
• Material Science: Serves as a building block for organic semiconductors, conductive polymers, or advanced organic frameworks (MOFs/COFs).
• Chemical Synthesis: Versatile scaffold for medicinal chemistry and the preparation of complex heterocyclic libraries for screening.
• Bioconjugation & Probe Development: The mercapto group allows for use in creating fluorescent probes or bioconjugates for diagnostic applications.

Basic Information

Item	Details
Product Name	2-Mercapto-3,5,6-Trimethylthieno[2,3-D]Pyrimidin-4(3H)-One
CAS No.	59898-59-8
Molecular Formula	C9H10N2OS2
Molecular Weight	226.32 g/mol
Synonyms	2-Mercapto-3,5,6-trimethylthieno[2,3-d]pyrimidin-4-one; 3,5,6-Trimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidine-2-thiol; 4(3H)-Thieno[2,3-d]pyrimidinone, 2-mercapto-3,5,6-trimethyl-; Thienopyrimidine derivative 59898-59-8
EINECS	Contact for details

Quality Control

Our production of 2-Mercapto-3,5,6-Trimethylthieno[2,3-D]Pyrimidin-4(3H)-One adheres to stringent internal quality protocols to ensure batch-to-batch consistency and high purity. Each lot is characterized and tested using advanced analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to handle under an inert atmosphere for long-term storage or when opening a new container. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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