Description

Pyrido[3,4-D]Pyrimidin-4(3H)-One (8Ci,9Ci) is a high-purity heterocyclic organic compound, identified by CAS number 19178-25-7, serving as a critical advanced pharmaceutical intermediate and versatile chemical building block. Its fused pyrido-pyrimidinone core structure makes it an essential scaffold for medicinal chemistry research and the synthesis of complex bioactive molecules. This compound is primarily utilized by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly kinase inhibitors and other targeted therapies.
• Medicinal Chemistry Research: Used as a core scaffold for structure-activity relationship (SAR) studies and library synthesis in drug discovery programs.
• Agrochemical Development: Serves as a building block for creating new active ingredients with herbicidal or pesticidal properties.
• Fine Chemical Synthesis: Employed in multi-step organic syntheses to construct complex heterocyclic systems for specialty chemicals.
• Biochemical Tool Compound: Potential use in developing probes for studying biological pathways and enzyme functions.

Basic Information

Product Name	Pyrido[3,4-D]Pyrimidin-4(3H)-One (8Ci,9Ci)
CAS No.	19178-25-7
Molecular Formula	C7H5N3O
Molecular Weight	147.14 g/mol
Synonyms	4(3H)-Pyrido[3,4-d]pyrimidinone; 3H-Pyrido[3,4-d]pyrimidin-4-one; Pyrido[3,4-d]pyrimidin-4(3H)-one; 4-Hydroxypyrido[3,4-d]pyrimidine; 4-Oxo-3,4-dihydropyrido[3,4-d]pyrimidine; 19178-25-7 (CAS); Pyrido-pyrimidinone derivative
EINECS	Contact for details

Quality Control

Our Pyrido[3,4-D]Pyrimidin-4(3H)-One (8Ci,9Ci) is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and residual solvent analysis. We provide a detailed Certificate of Analysis (COA) with every shipment, ensuring traceability and compliance with your research or production specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep the container tightly sealed in a dry environment to maintain product integrity.

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%
Heavy Metals	≤ 10 ppm

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