Description

(6-Methyl-4-Oxo-4H-Thieno[2,3-D]Pyrimidin-3-Yl)-Acetic Acid is a high-purity, heterocyclic carboxylic acid derivative featuring a fused thienopyrimidine core. This compound matters as a sophisticated pharmaceutical intermediate and key building block for the synthesis of novel active pharmaceutical ingredients (APIs) and agrochemicals. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries for creating new molecules with targeted biological activity.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of novel drug candidates, particularly those targeting kinase inhibition or other enzymatic pathways.
• Agrochemical Research: Serves as a key scaffold for developing new herbicides, fungicides, or insecticides with improved efficacy and selectivity.
• Chemical Biology Probe: Used in academic and industrial research to study protein-ligand interactions and biological mechanisms.
• Fine Chemical Synthesis: Employed as a versatile building block for constructing complex heterocyclic compounds in custom synthesis and contract manufacturing.
• Material Science Research: Potential precursor for organic electronic materials due to its conjugated thienopyrimidine structure.

Basic Information

Product Name	(6-Methyl-4-Oxo-4H-Thieno[2,3-D]Pyrimidin-3-Yl)-Acetic Acid
CAS No.	439139-95-4
Molecular Formula	C9H8N2O3S
Molecular Weight	224.23 g/mol
Synonyms	3-Carboxymethyl-6-methyl-4H-thieno[2,3-d]pyrimidin-4-one; (6-Methyl-4-oxo-4H-thieno[2,3-d]pyrimidin-3-yl)acetic acid; 2-(6-Methyl-4-oxothieno[2,3-d]pyrimidin-3(4H)-yl)acetic acid; Thieno[2,3-d]pyrimidine-3-acetic acid, 6-methyl-4-oxo-; 439139-95-4; 6-Methyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidine-3-acetic acid
EINECS	Contact for details

Quality Control

Our (6-Methyl-4-Oxo-4H-Thieno[2,3-D]Pyrimidin-3-Yl)-Acetic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure compliance with exacting research and pharmaceutical intermediate standards. Comprehensive Certificates of Analysis (COA) detailing all specifications are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white 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.