Description

4-Amino-2,5-Dimethylthieno[2,3-D]Pyrimidine-6-Carboxylic Acid is a high-purity, heterocyclic carboxylic acid derivative that serves as a critical building block in advanced organic synthesis. Its unique fused thienopyrimidine structure makes it an invaluable intermediate for the development of novel active pharmaceutical ingredients (APIs) and functional materials. This compound is primarily sought by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for creating compounds with targeted biological or electronic properties.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly in oncology, antiviral, and central nervous system (CNS) therapeutic areas.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging its heterocyclic core for bioactivity.
• Material Science: Serves as a building block for organic semiconductors, dyes, and photoactive materials due to its electron-rich thienopyrimidine system.
• Chemical Synthesis: Employed as a versatile scaffold in medicinal chemistry for structure-activity relationship (SAR) studies and library synthesis.
• Academic & Industrial R&D: Utilized in research laboratories for exploring new chemical reactions and developing proprietary synthetic methodologies.

Basic Information

Product Name	4-Amino-2,5-Dimethylthieno[2,3-D]Pyrimidine-6-Carboxylic Acid
CAS No.	923737-07-9
Molecular Formula	C9H9N3O2S
Molecular Weight	223.25 g/mol
Synonyms	4-Amino-2,5-dimethylthieno[2,3-d]pyrimidine-6-carboxylic acid; 2,5-Dimethyl-4-aminothieno[2,3-d]pyrimidine-6-carboxylic acid; Thieno[2,3-d]pyrimidine-6-carboxylic acid, 4-amino-2,5-dimethyl-; 923737-07-9; 4-Amino-2,5-dimethylthieno[2,3-d]pyrimidine-6-carboxylate
EINECS	Contact for details

Quality Control

Our production of 4-Amino-2,5-Dimethylthieno[2,3-D]Pyrimidine-6-Carboxylic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. Each lot is subjected to comprehensive analytical testing, including HPLC, NMR, and mass spectrometry, to verify identity and quantify impurities. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications. We support cGMP and ISO 9001 standards for pharmaceutical and industrial-grade materials.

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). This compound is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) when not in use to prevent degradation. Keep away from incompatible materials.

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)	≤ 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.