Description

4-Chloro-8-Methoxypyrido[3,4-D]Pyrimidine is a high-purity heterocyclic building block of significant interest in advanced organic synthesis. This compound matters as a key intermediate for constructing complex molecular architectures, particularly in pharmaceutical research and development. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a critical scaffold in the synthesis of potential kinase inhibitors and other targeted therapeutic agents.
• Agrochemical Research: Used in the development of novel herbicides, fungicides, and plant growth regulators.
• Chemical Biology Probe Development: Acts as a core structure for creating tool compounds to study biological pathways and protein function.
• Material Science Precursor: Employed in the synthesis of organic electronic materials and ligands for catalytic systems.
• Custom Synthesis & Contract Manufacturing: A valuable starting material for custom synthesis projects and scale-up processes under cGMP conditions.
• Academic & Institutional Research: Utilized in universities and research institutes for methodological development and discovery chemistry.

Basic Information

Item	Details
Product Name	4-Chloro-8-Methoxypyrido[3,4-D]Pyrimidine
CAS No.	1260178-67-3
Molecular Formula	C9H6ClN3O
Molecular Weight	207.61 g/mol
Synonyms	4-Chloro-8-methoxypyrido[3,4-d]pyrimidine; 8-Methoxy-4-chloropyrido[3,4-d]pyrimidine; 4-Chloro-8-methoxy-pyrido[3,4-d]pyrimidine; Pyrido[3,4-d]pyrimidine, 4-chloro-8-methoxy-; 1260178-67-3; 4-Chloro-8-methoxy-pyrido[3,4-d]pyrimidine; 4-Chloro-8-methoxy-9H-pyrido[3,4-d]pyrimidine
EINECS	Contact for details

Quality Control

Our 4-Chloro-8-Methoxypyrido[3,4-D]Pyrimidine is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications and test results are provided and available upon request. We support development needs from milligram to kilogram scale with a commitment to reliable supply and traceability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Keep away from incompatible materials. For long-term storage, consider storing under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (HPLC)	Conforms
Identification (NMR)	Conforms
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.