Description

Thieno[2,3-D]Pyrimidine, 6-Methyl- (9Ci) is a high-purity heterocyclic organic compound that serves as a critical advanced intermediate in modern synthetic chemistry. Its fused thienopyrimidine core structure makes it a valuable building block for the development of novel active pharmaceutical ingredients (APIs) and functional materials. This compound is primarily sought after by research institutions and industrial R&D departments in the pharmaceutical, agrochemical, and material science sectors for creating new molecular entities with targeted properties.

Application

• Pharmaceutical Intermediate: A key synthon for the synthesis of novel drug candidates, particularly in kinase inhibitor and antiviral research.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and plant growth regulators.
• Material Science Precursor: Serves as a building block for organic semiconductors, liquid crystals, and photoactive materials.
• Academic & Contract Research: Essential for medicinal chemistry programs and structure-activity relationship (SAR) studies in university and CRO laboratories.
• Chemical Biology Probe Development: Utilized to create tool compounds for investigating biological pathways and target validation.

Basic Information

Product Name	Thieno[2,3-D]Pyrimidine, 6-Methyl- (9Ci)
CAS No.	106691-22-9
Molecular Formula	C7H6N2S
Molecular Weight	150.20 g/mol
Synonyms	6-Methylthieno[2,3-d]pyrimidine; 6-Methylthieno[2,3-d]pyrimidine (9CI); Thieno[2,3-d]pyrimidine, 6-methyl-; 6-Methyl-thieno[2,3-d]pyrimidine; 6-Methyl-4H-thieno[2,3-d]pyrimidine; 6-Methylthieno(2,3-d)pyrimidine; 6-Methyl-4H-thieno[2,3-d]pyrimidine; 4H-Thieno[2,3-d]pyrimidine, 6-methyl-
EINECS	Contact for details

Quality Control

Our Thieno[2,3-D]Pyrimidine, 6-Methyl- (9Ci) is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Products undergo rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment. We support custom synthesis and can tailor purity grades to meet specific research or cGMP starting material requirements.

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). Keep away from incompatible materials. For long-term storage, consider storage under an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
Purity (HPLC)	≥ 97.0% (Standard Grade)
Related Substances (HPLC)	Total impurities ≤ 3.0%
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.