Description

4-Ethylpyrido[2,3-d]pyrimidine is a high-purity heterocyclic organic compound serving as a critical building block in advanced chemical synthesis. Its fused pyrido-pyrimidine core structure makes it a valuable intermediate for developing novel active pharmaceutical ingredients (APIs) and functional materials. This product is essential for research and development chemists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to create new molecules with targeted properties.

Application

• Pharmaceutical Intermediate: Key synthon for the research and development of new drug candidates, particularly in kinase inhibitor and antiviral therapeutic areas.
• Agrochemical Research: Used as a core structure in the synthesis of novel herbicides, fungicides, and plant growth regulators.
• Material Science: Serves as a precursor for organic electronic materials, including ligands for metal-organic frameworks (MOFs) and components for organic light-emitting diodes (OLEDs).
• Chemical Synthesis: A versatile building block for constructing complex heterocyclic systems in academic and industrial research laboratories.
• Ligand & Catalyst Development: Utilized in the design of novel ligands for catalytic systems and coordination chemistry.

Basic Information

Product Name	4-Ethylpyrido[2,3-d]pyrimidine
CAS No.	28732-68-5
Molecular Formula	C9H9N3
Molecular Weight	159.19 g/mol
Synonyms	4-Ethylpyrido[2,3-d]pyrimidine; 4-Ethylpyrido[2,3-d]pyrimidine; 4-Ethyl-2,3-dihydro-1H-pyrido[2,3-d]pyrimidine; Pyrido[2,3-d]pyrimidine, 4-ethyl-; 4-Ethyl-1H-pyrido[2,3-d]pyrimidine; 4-Ethylpyrido[2,3-d]pyrimidin-2-amine (related amine derivative); 4-Ethyl-7-azapteridine (alternative naming)
EINECS	Contact for details

Quality Control

Our 4-Ethylpyrido[2,3-d]pyrimidine is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. We provide full traceability and detailed Certificates of Analysis (COA) with every shipment to support your quality assurance and regulatory needs.

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); keep the container tightly sealed to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 97.0% (Standard Grade)
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

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