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650-09-9

O,O-Diethyl O-Trifluoroacetyl Phosphate (DFP) is a highly toxic organophosphorus compound that belongs to the class of nerve agents. It is an oily, colorless liquid with a strong, fruity odor. DFP acts as an irreversible inhibitor of the enzyme acetylcholinesterase, which plays a crucial role in the nervous system by breaking down the neurotransmitter acetylcholine. By inhibiting this enzyme, DFP leads to an accumulation of acetylcholine, causing overstimulation of the nervous system and potentially leading to severe health effects or death. Due to its high toxicity, DFP is considered a chemical warfare agent and is strictly regulated under various international conventions. It is also used as a pesticide and has been employed as a reagent in organic synthesis. However, its use in these applications has been largely phased out due to its extreme hazard and the availability of safer alternatives.

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  • 650-09-9 Structure

  • Basic information

    1. Product Name: O,O-Diethyl O-Trifluoroacetyl Phosphate
    2. Synonyms: O,O-Diethyl O-Trifluoroacetyl Phosphate
    3. CAS NO:650-09-9
    4. Molecular Formula:
    5. Molecular Weight: 250.111
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 650-09-9.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: N/A
    5. Density: N/A
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: O,O-Diethyl O-Trifluoroacetyl Phosphate(CAS DataBase Reference)
    10. NIST Chemistry Reference: O,O-Diethyl O-Trifluoroacetyl Phosphate(650-09-9)
    11. EPA Substance Registry System: O,O-Diethyl O-Trifluoroacetyl Phosphate(650-09-9)

  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 650-09-9(Hazardous Substances Data)

650-09-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 650-09-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,5 and 0 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 650-09:
(5*6)+(4*5)+(3*0)+(2*0)+(1*9)=59
59 % 10 = 9
So 650-09-9 is a valid CAS Registry Number.

650-09-9Relevant articles and documents

A NEW EFFICIENT SYNTHESIS OF TRIFLUOROACETYL HALIDES AND MIXED ANHYDRIDES OF PHOSPHORUS AND TRIFLUOROACETIC ACIDS

Helinski, J.,Skrzypczynski, Z.,Wasiak, J.,Michalski, J.

, p. 225 - 226 (2007/10/02)

Reaction of trifluoroacetic anhydride with chloroanhydrides of phosphorus acids R2P(O)Cl results in formation of mixed anhydrides R2P(O)OCOCF3 and trifluoroacetic acid halides CF3COX (X=Cl, Br, I) in quantitative yield.

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