Description

2-Oxoheptylphosphonic Acid Diethyl Ester is a high-purity organophosphorus compound, specifically a phosphonate ester, valued for its role as a versatile synthetic intermediate and ligand precursor. Its chemical structure makes it a critical building block in the development of specialized materials and active pharmaceutical ingredients (APIs). This product is essential for R&D chemists and process engineers in the pharmaceutical, agrochemical, and advanced materials sectors seeking to develop new molecules with enhanced properties.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly those targeting bone diseases or requiring phosphonate-based bioisosteres.
• Agrochemical Synthesis: Used in the production of advanced herbicides, plant growth regulators, and other crop protection agents.
• Ligand for Catalysis: Serves as a precursor for phosphine-phosphonate ligands used in homogeneous catalysis, including cross-coupling and hydrogenation reactions.
• Flame Retardant Additive: Incorporated as a reactive intermediate in the manufacture of flame-retardant polymers and coatings.
• Metal Chelation & Extraction: Utilized in the formulation of chelating agents for metal ion sequestration and in hydrometallurgical processes.
• Surface Modification Agent: Applied in the functionalization of material surfaces to alter wettability, adhesion, or corrosion resistance.

Basic Information

Item	Details
Product Name	2-Oxoheptylphosphonic Acid Diethyl Ester
CAS No.	3450-65-5
Molecular Formula	C11H23O4P
Molecular Weight	250.27 g/mol
Synonyms	Diethyl 2-Oxoheptylphosphonate; Diethyl (2-Oxoheptyl)phosphonate; 2-Oxoheptylphosphonic Acid Diethyl Ester; Heptan-2-one, 1-(diethoxyphosphinyl)-; 1-(Diethoxyphosphoryl)heptan-2-one; Diethyl (1-oxoheptan-2-yl)phosphonate; Phosphonic acid, P-(2-oxoheptyl)-, diethyl ester
EINECS	222-375-5

Quality Control

Our 2-Oxoheptylphosphonic Acid Diethyl Ester is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including chromatographic purity assays and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. A Certificate of Analysis (COA) detailing specific results for purity, identity, and impurities 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 a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from strong acids and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	1.040 - 1.080
Refractive Index (n20D)	1.440 - 1.460

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