Description

3-Amino-2,6-Dimethylthieno[2,3-D]Pyrimidin-4(3H)-One is a high-value heterocyclic building block featuring a fused thienopyrimidine core. This compound matters as a critical intermediate in the synthesis of complex pharmaceutical molecules, particularly those targeting kinase inhibition and other therapeutic pathways. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries for constructing novel active ingredients.

Application

• Pharmaceutical Intermediate: A key synthon for the development of kinase inhibitors and other small-molecule therapeutics.
• Agrochemical Research: Used in the synthesis of novel active ingredients for crop protection products.
• Chemical Biology: Serves as a scaffold or probe in the study of biological pathways and target identification.
• Material Science: Potential precursor for organic electronic materials due to its fused heteroaromatic structure.
• Custom Synthesis: Employed by contract research and manufacturing organizations (CROs/CMOs) for client-specific molecule construction.

Basic Information

Product Name	3-Amino-2,6-Dimethylthieno[2,3-D]Pyrimidin-4(3H)-One
CAS No.	79927-76-7
Molecular Formula	C9H9N3OS
Molecular Weight	207.25 g/mol
Synonyms	3-Amino-2,6-dimethyl-4H-thieno[2,3-d]pyrimidin-4-one; 2,6-Dimethyl-3-amino-4H-thieno[2,3-d]pyrimidin-4-one; 4(3H)-Thieno[2,3-d]pyrimidinone, 3-amino-2,6-dimethyl-; 3-Amino-2,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-one; 79927-76-7; Thienopyrimidine derivative
EINECS	Contact for details

Quality Control

Our production of 3-Amino-2,6-Dimethylthieno[2,3-D]Pyrimidin-4(3H)-One adheres to stringent in-process controls to ensure batch-to-batch consistency and high purity. We employ advanced analytical techniques including HPLC, NMR, and MS for comprehensive characterization. A Certificate of Analysis (COA) detailing identity, purity, and impurity profile is provided with each shipment to support your quality and regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which may affect stability and handling properties.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

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