Description

4-Oxo-4H-Pyrido[1,2-A]Pyrimidine-3-Carboxylic Acid Ethyl Ester is a high-value heterocyclic building block and key synthetic intermediate. Its fused pyrido-pyrimidine core structure makes it a versatile scaffold for advanced chemical synthesis, particularly in the development of active pharmaceutical ingredients (APIs) and functional materials. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors seeking to develop novel compounds with specific biological or physical properties.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of complex drug candidates, particularly those targeting central nervous system (CNS) disorders, anti-infectives, and kinase inhibitors.
• Agrochemical Research: Used as a building block for developing new herbicides, fungicides, and insecticides with novel modes of action.
• Material Science: Serves as a monomer or precursor for creating advanced polymers, organic semiconductors, and luminescent materials.
• Chemical Biology & Proteomics: Employed in the design and synthesis of molecular probes, enzyme inhibitors, and activity-based protein profiling (ABPP) reagents.
• Academic & Contract Research: A valuable reagent for synthetic organic chemistry research, methodology development, and library synthesis for high-throughput screening.
• Dye & Pigment Industry: Acts as an intermediate for synthesizing specialized heterocyclic dyes and optical brighteners.

Basic Information

Product Name	4-Oxo-4H-Pyrido[1,2-A]Pyrimidine-3-Carboxylic Acid Ethyl Ester
CAS No.	32092-18-5
Molecular Formula	C11H10N2O3
Molecular Weight	218.21 g/mol
Synonyms	Ethyl 4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxylate; 4H-Pyrido[1,2-a]pyrimidine-3-carboxylic acid, 4-oxo-, ethyl ester; Ethyl 4-oxopyrido[1,2-a]pyrimidine-3-carboxylate; Pyrido[1,2-a]pyrimidine-3-carboxylic acid, 4-oxo-, ethyl ester; 32092-18-5; UNII-9V3Q8W4G0B; 9V3Q8W4G0B; SCHEMBL11827679; DTXSID60672976
EINECS	Contact for details

Quality Control

Our 4-Oxo-4H-Pyrido[1,2-A]Pyrimidine-3-Carboxylic Acid Ethyl Ester is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with each shipment, confirming compliance with customer specifications. Our quality commitment supports applications requiring GMP-grade intermediates and materials for regulatory filings.

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). Keep away from heat, sparks, and open flame. For long-term storage, consider storing under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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