Description

3-Amino-5,6-Dimethyl-3H-Thieno[2,3-D]Pyrimidin-4-One is a high-purity heterocyclic organic compound that serves as a critical building block in advanced chemical synthesis. Its unique fused thienopyrimidinone structure makes it a valuable intermediate for developing novel active pharmaceutical ingredients (APIs) and functional materials. This product is essential for research and manufacturing chemists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to create innovative molecules with targeted properties.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly for therapeutic areas requiring complex heterocyclic scaffolds.
• Agrochemical Research: Used in the development of new pesticides and herbicides, leveraging its bio-active core structure.
• Material Science: Serves as a building block for organic electronic materials, such as semiconductors and light-emitting compounds.
• Chemical Synthesis: Employed in academic and industrial R&D for constructing complex molecular libraries and exploring new chemical reactions.
• Dye & Pigment Intermediate: Potential use in the synthesis of specialized dyes and colorants due to its conjugated system.

Basic Information

Product Name	3-Amino-5,6-Dimethyl-3H-Thieno[2,3-D]Pyrimidin-4-One
CAS No.	32973-77-6
Molecular Formula	C8H9N3OS
Molecular Weight	195.24 g/mol
Synonyms	3-Amino-5,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-one; 5,6-Dimethyl-3-aminothieno[2,3-d]pyrimidin-4-one; 3-Amino-5,6-dimethyl-4H-thieno[2,3-d]pyrimidin-4-one; 32973-77-6; Thieno[2,3-d]pyrimidin-4-one, 3-amino-5,6-dihydro-5,6-dimethyl-; 3-Amino-5,6-dimethyl-3H-thieno[2,3-d]pyrimidin-4-one
EINECS	Contact for details

Quality Control

Our 3-Amino-5,6-Dimethyl-3H-Thieno[2,3-D]Pyrimidin-4-One is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure it meets the high standards required for research and production. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be opaque or stored in dark conditions.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 20 ppm

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