Description

Pyrido[3,4-D]Pyrimidine, 1,4-Dihydro-4-Methyl- (9Ci) is a heterocyclic organic compound belonging to the pyridopyrimidine class, serving as a versatile and high-value pharmaceutical intermediate. Its fused bicyclic structure makes it a critical building block for the synthesis of complex molecules with potential biological activity. This compound is primarily sought by research institutions and pharmaceutical companies engaged in the development of novel therapeutic agents, particularly in oncology and central nervous system (CNS) drug discovery.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of kinase inhibitors and other targeted small-molecule drugs.
• Organic Synthesis Building Block: Used in medicinal chemistry for constructing complex heterocyclic scaffolds for biological screening.
• Research & Development (R&D): Essential for academic and industrial research programs focusing on novel pharmacophores and structure-activity relationship (SAR) studies.
• Chemical Reference Standard: Serves as a high-purity standard for analytical method development and quality control in API manufacturing.

Basic Information

Product Name	Pyrido[3,4-D]Pyrimidine, 1,4-Dihydro-4-Methyl- (9Ci)
CAS No.	51752-72-8
Molecular Formula	C8H9N3
Molecular Weight	147.18 g/mol
Synonyms	1,4-Dihydro-4-methylpyrido[3,4-d]pyrimidine; 4-Methyl-1,4-dihydropyrido[3,4-d]pyrimidine; 4-Methyl-1H-pyrido[3,4-d]pyrimidine; Pyrido[3,4-d]pyrimidine, 1,4-dihydro-4-methyl-; 1,4-Dihydro-4-methyl-1H-pyrido[3,4-d]pyrimidine; 4-Methylpyrido[3,4-d]pyrimidine-1,4-dihydro; 51752-72-8
EINECS	Contact for details

Quality Control

Our Pyrido[3,4-D]Pyrimidine, 1,4-Dihydro-4-Methyl- (9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for pharmaceutical research and development. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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