Description

Phosphonic Acid, [[4-(3,4-Dihydro-8-Methoxy-3-Methyl-4-Oxo-2-Quinazolinyl)Phenyl]Methyl]-, Diethyl Ester (9Ci) is a specialized organophosphorus compound featuring a quinazolinone moiety, designed for advanced research and development applications. This high-purity chemical intermediate is critical for synthetic chemists developing novel active pharmaceutical ingredients (APIs) and agrochemicals. It is primarily sought by R&D teams in the pharmaceutical, agrochemical, and fine chemical sectors for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel 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.
• Material Science Research: Potential monomer or additive in the development of specialty polymers with unique properties.
• Organic Synthesis: Versatile intermediate for constructing complex heterocyclic systems in academic and industrial research laboratories.

Basic Information

Product Name	Phosphonic Acid, [[4-(3,4-Dihydro-8-Methoxy-3-Methyl-4-Oxo-2-Quinazolinyl)Phenyl]Methyl]-, Diethyl Ester (9Ci)
CAS No.	173018-76-3
Molecular Formula	C21H25N2O5P
Molecular Weight	416.41 g/mol
Synonyms	Diethyl [[4-(3,4-dihydro-8-methoxy-3-methyl-4-oxo-2-quinazolinyl)phenyl]methyl]phosphonate; Diethyl ({4-[8-Methoxy-3-methyl-4-oxo-3,4-dihydroquinazolin-2-yl]phenyl}methyl)phosphonate; 2-[4-[(Diethoxyphosphoryl)methyl]phenyl]-8-methoxy-3-methylquinazolin-4(3H)-one; Phosphonic acid, P-[[4-(3,4-dihydro-8-methoxy-3-methyl-4-oxo-2-quinazolinyl)phenyl]methyl]-, diethyl ester; CAS 173018-76-3
EINECS	Contact for details

Quality Control

Our production of Phosphonic Acid, [[4-(3,4-Dihydro-8-Methoxy-3-Methyl-4-Oxo-2-Quinazolinyl)Phenyl]Methyl]-, Diethyl Ester (9Ci) adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity for research applications. All materials are characterized using advanced analytical techniques, including NMR and HPLC. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory documentation.

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 to protect from moisture.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.