Description

Diethyl-5-Bromopentylphosphonate is a high-purity organophosphorus compound, specifically a bromoalkyl phosphonate ester, serving as a critical building block in advanced organic synthesis. Its value lies in its bifunctional reactivity, featuring both a bromoalkyl group for nucleophilic substitution and a phosphonate moiety for Horner-Wadsworth-Emmons (HWE) olefination reactions. This makes it an essential intermediate for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries, enabling the efficient construction of complex molecules and novel materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds containing terminal alkene or phosphonate functionalities.
• Agrochemical Synthesis: Used in the development of novel herbicides, pesticides, and plant growth regulators that require specific alkyl chain modifications.
• Material Science: Building block for creating functionalized polymers, ligands for catalysis, and advanced organic frameworks.
• Chemical Research: Versatile reagent in academic and industrial R&D for constructing complex organic molecules via carbon-carbon bond forming reactions.
• Ligand & Catalyst Preparation: Intermediate for synthesizing phosphonate-based ligands used in transition metal catalysis.
• Fine Chemical Production: Employed in the multi-step synthesis of flavors, fragrances, and other high-value specialty chemicals.

Basic Information

Product Name	Diethyl-5-Bromopentylphosphonate
CAS No.	42757-42-6
Molecular Formula	C9H20BrO3P
Molecular Weight	287.13 g/mol
Synonyms	5-Bromopentyldiethylphosphonate; Diethyl (5-bromopentyl)phosphonate; (5-Bromopentyl)phosphonic Acid Diethyl Ester; Diethyl 5-Bromopentylphosphonate; Diethyl 5-Bromopentyl Phosphonate; Phosphonic Acid, (5-Bromopentyl)-, Diethyl Ester; NSC 334228
EINECS	Contact for details

Quality Control

Our Diethyl-5-Bromopentylphosphonate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical parameters. Our quality commitment ensures the material meets the stringent requirements for research and commercial synthesis applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20/D)	1.470 - 1.480
Density (g/mL, 20°C)	1.25 - 1.35

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