Description

4-Methoxyfluorophosphinyloxy Tempo CAS NO 181702-77-2 is a specialized organophosphorus compound featuring a stable nitroxyl radical (TEMPO) moiety. This unique structure makes it a valuable intermediate and reagent in advanced synthetic chemistry and materials science. It is primarily sought after by researchers and manufacturers in the pharmaceutical, agrochemical, and polymer industries for applications requiring controlled radical reactions and functionalization.

Application

• Pharmaceutical Intermediate: Used in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for introducing radical-based functional groups.
• Polymer Science & Modification: Acts as a mediator in controlled/living radical polymerization (e.g., ATRP, NMP) to create polymers with precise molecular weights and architectures.
• Agrochemical Synthesis: Serves as a key building block in the development of advanced crop protection agents with novel modes of action.
• Spin Labeling Reagent: Utilized in electron paramagnetic resonance (EPR) spectroscopy for studying molecular dynamics and structures in biochemistry and materials research.
• Surface Functionalization: Enables the covalent attachment of specific functional groups to material surfaces for enhanced properties.
• Organic Synthesis Catalyst/Mediator: Facilitates selective oxidation reactions and other radical-mediated transformations in complex molecule synthesis.

Basic Information

Product Name	4-Methoxyfluorophosphinyloxy Tempo
CAS No.	181702-77-2
Molecular Formula	C₁₀H₂₀FNO₄P
Molecular Weight	268.25 g/mol
Synonyms	4-Methoxyfluorophosphinyloxy-2,2,6,6-tetramethylpiperidin-1-oxyl; (1-Oxyl-2,2,6,6-tetramethylpiperidin-4-yl) methylfluorophosphonate; TEMPO fluorophosphonate derivative; 4-(Fluoromethoxyphosphinyloxy)-TEMPO; 4-(Fluorophosphinyloxymethyl)-TEMPO; 2,2,6,6-Tetramethyl-4-((fluorophosphinyloxy)methyl)piperidin-1-oxyl
EINECS	Contact for details

Quality Control

Every batch of 4-Methoxyfluorophosphinyloxy Tempo undergoes rigorous analytical testing to ensure high purity and consistent performance. Our quality assurance protocols are designed to meet the stringent requirements of research and industrial-scale synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment.

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). This compound is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) when possible to maintain stability.

Specification

Item	Specification
Appearance	Orange to red solid or viscous liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95%
Assay (EPR)	≥ 97% radical content
Water Content (KF)	≤ 1.0%

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