41203-81-0

Basic information

• Product Name: (5-Ethyl-2-methyl-1,3,2-dioxaphosphorinan-5-yl)methyl dimethyl phosphonate P-oxide
• Synonyms: (5-Ethyl-2-methyl-1,3,2-dioxaphosphorinan-5-yl)methyl dimethyl phosphonate P-oxide;methylphosphonic acid (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphorinan-5-yl)methyl methyl ester;Phosphonic acid, methyl-, (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphorinan-5-yl)methyl methyl ester;AMGARDV19;Methylphosphonic acid (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphorinan-5-y;5-Ethyl-5-[[[methoxy(methyl)phosphinyl]oxy]methyl]-2-methyl-1,3,2-dioxaphosphorinane 2-oxide;Einecs 255-263-6;Methyl(5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphorinan-5-yl)methyl methylphosphonate
• CAS NO: 41203-81-0
• Molecular Formula: C9H20O6P2
• Molecular Weight: 286.2
• EINECS: 255-263-6
• Mol File: 41203-81-0.mol

Chemical Properties

• Boiling Point: 369.1 °C at 760 mmHg
• Flash Point: 190.7 °C
• Appearance: /
• Density: 1.21
• Vapor Pressure: 2.58E-05mmHg at 25°C
• Refractive Index: 1.439
• CAS DataBase Reference: (5-Ethyl-2-methyl-1,3,2-dioxaphosphorinan-5-yl)methyl dimethyl phosphonate P-oxide(CAS DataBase Reference)
• NIST Chemistry Reference: (5-Ethyl-2-methyl-1,3,2-dioxaphosphorinan-5-yl)methyl dimethyl phosphonate P-oxide(41203-81-0)
• EPA Substance Registry System: (5-Ethyl-2-methyl-1,3,2-dioxaphosphorinan-5-yl)methyl dimethyl phosphonate P-oxide(41203-81-0)

Safety Data

• Hazardous Substances Data: 41203-81-0(Hazardous Substances Data)

Usage

Uses

Used in Research Applications:
(5-Ethyl-2-methyl-1,3,2-dioxaphosphorinan-5-yl)methyl dimethyl phosphonate P-oxide is used as a research chemical for studying its toxicological effects and potential countermeasures against nerve agents. Its application in research helps in understanding the mechanisms of action and developing antidotes or protective measures against similar toxic compounds.
Used in Military Applications:
Due to its potent neurotoxic properties, (5-Ethyl-2-methyl-1,3,2-dioxaphosphorinan-5-yl)methyl dimethyl phosphonate P-oxide is used in military applications as a chemical weapon. Its use in this context is highly regulated and controlled due to the significant risks associated with its deployment.

InChI:InChI=1/C9H20O6P2/c1-5-9(6-13-16(3,10)12-2)7-14-17(4,11)15-8-9/h5-8H2,1-4H3

Upstream product

• 756-79-6 dimethyl methane phosphonate 
• 824-11-3 ethriol phosphite 
• 77-99-6 1,1,1-tri(hydroxymethyl)propane 
• 126-58-9 Dipentaerythritol 
• 121-45-9 phosphorous acid trimethyl ester 

Relevant articles and documents

Preparation method of mixed flame retardant used for spinning

The invention discloses a preparation method of a mixed flame retardant used for spinning. The mixed flame retardant is prepared through physical mixing at present. As cyclic phosphonate compounds generally have higher viscosity, and the lower the temperature is, the poorer the flow is, not only is the operation inconvenient to carry out during physical compounding but also the problems of poor mixing uniformity and difficulty in filtration also exist. Raw materials used in reaction include raw materials A, a raw material B and a raw material C, wherein the raw materials A are two or more of trimethylolethane, trimethylolpropane and dipentaerythritol; the raw material B is one of trimethyl phosphite, triethyl phosphite and tributyl phosphite; the raw material C is one of dimethyl methylphosphonate, trimethyl phosphate and triethyl phosphate; a mixture formed by at least two cyclic phosphonate compounds is directly obtained through reaction among the three kinds of raw materials. The preparation method has the beneficial effects that the mixed flame retardant with different components and ratios is directly prepared by controlling the ratio of the reactant raw materials and has the advantages of simple process, good mixing uniformity of the product, easiness in control of chemical components, and the like.

Design of new organophosphorus flame retardants

Considerations for the design of new additive flame retardants are discussed. The chemistry and potential application of new developmental polymeric flame retardants is described.