Description

(6-Ethyl-4-Oxo-4H-Thieno[2,3-D]-Pyrimidin-3-Yl)-Acetic Acid is a high-purity, specialized heterocyclic building block of significant interest in advanced organic synthesis. This compound matters for its role as a key intermediate in the development of novel active pharmaceutical ingredients (APIs) and other fine chemicals. It is primarily needed by research and development teams, process chemists, and manufacturers in the pharmaceutical, agrochemical, and material science industries seeking to incorporate complex thienopyrimidine scaffolds into their molecules.

Application

• Pharmaceutical Intermediate: Serves as a critical precursor in the synthesis of potential drug candidates, particularly those targeting kinase inhibition or other enzyme-related pathways.
• Agrochemical Research: Used in the development of new herbicides, fungicides, or insecticides that leverage the thienopyrimidine core for biological activity.
• Material Science: Acts as a building block for creating novel organic electronic materials or specialty polymers with unique properties.
• Chemical Biology & Proteomics: Employed in the design and synthesis of molecular probes and tool compounds for studying biological systems.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for client-specific research and scale-up projects.
• Academic & Institutional Research: Utilized in university and government laboratories for fundamental studies in heterocyclic chemistry and medicinal chemistry.

Basic Information

Product Name	(6-Ethyl-4-Oxo-4H-Thieno[2,3-D]-Pyrimidin-3-Yl)-Acetic Acid
CAS No.	686312-09-4
Molecular Formula	C₁₀H₁₀N₂O₃S
Molecular Weight	238.26 g/mol
Synonyms	3-Carboxymethyl-6-ethyl-4H-thieno[2,3-d]pyrimidin-4-one; 2-(6-Ethyl-4-oxo-4H-thieno[2,3-d]pyrimidin-3-yl)acetic acid; (6-Ethyl-4-oxo-4H-thieno[2,3-d]pyrimidin-3-yl)acetic acid; 6-Ethyl-4-oxo-4H-thieno[2,3-d]pyrimidine-3-acetic acid; Thieno[2,3-d]pyrimidine-3-acetic acid, 6-ethyl-4-oxo-4H-; 686312-09-4
EINECS	Contact for details

Quality Control

Our (6-Ethyl-4-Oxo-4H-Thieno[2,3-D]-Pyrimidin-3-Yl)-Acetic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all relevant specifications. Our quality commitment ensures the material meets the high standards required for research and development applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (typically 15-25°C). This material is light-sensitive (store away from light) and should be handled with appropriate precautions for strong acids/organic solvents. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 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.