Description

Phosphonic Acid, [[4-(3,4-Dihydro-6,7,8-Trimethoxy-3-Methyl-4-Oxo-2-Quinazolinyl)Phenyl]Methyl]-, Diethyl Ester (9Ci) is a specialized organophosphorus compound featuring a complex quinazolinone core. This high-purity intermediate is critical for advanced pharmaceutical research and development, particularly in the synthesis of novel therapeutic agents. It is primarily sought by R&D chemists and process development scientists in the pharmaceutical and agrochemical industries for constructing targeted molecular architectures.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of complex drug candidates, particularly those targeting specific enzyme pathways.
• Agrochemical Research: Used in the development of new-generation herbicides, fungicides, or plant growth regulators with enhanced activity.
• Chemical Biology Probe: Serves as a precursor for creating molecular probes to study biological processes and protein interactions.
• Ligand Synthesis: Utilized in the preparation of specialized ligands for catalysis or metal complexation studies.
• Process Chemistry: Employed in route scouting and optimization for the scalable production of active pharmaceutical ingredients (APIs).

Basic Information

Product Name	Phosphonic Acid, [[4-(3,4-Dihydro-6,7,8-Trimethoxy-3-Methyl-4-Oxo-2-Quinazolinyl)Phenyl]Methyl]-, Diethyl Ester (9Ci)
CAS No.	173018-79-6
Molecular Formula	C23H29NO7P
Molecular Weight	462.45 g/mol
Synonyms	Diethyl [[4-(3,4-dihydro-6,7,8-trimethoxy-3-methyl-4-oxo-2-quinazolinyl)phenyl]methyl]phosphonate; [[4-(3,4-Dihydro-6,7,8-trimethoxy-3-methyl-4-oxo-2-quinazolinyl)phenyl]methyl]phosphonic Acid Diethyl Ester; 2-Quinazolinylphosphonic Acid Derivative; Phosphonate Ester Quinazolinone Intermediate; CAS 173018-79-6
EINECS	Contact for details

Quality Control

Our production of Phosphonic Acid, [[4-(3,4-Dihydro-6,7,8-Trimethoxy-3-Methyl-4-Oxo-2-Quinazolinyl)Phenyl]Methyl]-, Diethyl Ester (9Ci) adheres to stringent internal quality standards to ensure batch-to-batch consistency and reliability for research applications. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive); keep the container tightly sealed under an inert atmosphere if necessary to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 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.