Alfa Aesar™ Diethylaminosulfur trifluoride, 95%

Manufacturer: Alfa Aesar™ A1199206

Quantity 5g

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Catalog No. AAA1199206

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    Chemical Identifiers

    CAS 38078-09-0
    Molecular Formula C4H10F3NS
    Linear Formula (CH3CH2)2NSF3
    Formula Weight 161.19g/mol
    MDL Number MFCD00000363
    UN Number UN2920
    Beilstein 1849066
    Synonym DAST
    Chemical Name or Material Diethylaminosulfur trifluoride

    Specifications

    Boiling Point 30° to 32°C (3mmHg)
    Flash Point 23°C (73°F)
    Quantity 5g
    CAS 38078-09-0
    Molecular Formula C4H10F3NS
    Linear Formula (CH3CH2)2NSF3
    Formula Weight 161.19g/mol
    MDL Number MFCD00000363
    UN Number UN2920
    Beilstein 1849066
    Synonym DAST
    Health Hazard 1 Danger
    Health Hazard 2 GHS H Statement
    H331-H314-H318-H226
    Toxic if inhaled.
    Causes severe skin burns and eye damage.
    Causes serious eye damage.
    Flammable liquid and vapor.
    Health Hazard 3 GHS P Statement
    P280-P303+P361+P353-P305+P351+P338-P310-P402
    Wear protective gloves/protective clothing/eye protection/face protection.
    IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
    IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do.
    Continue rinsing.
    Immediately call a POISON CENTER or doctor/physician.
    Store in a dry place.
    Recommended Storage 2°C to 8°C
    DOT Information Transport Hazard Class: 8; Packing Group: I; Proper Shipping Name: CORROSIVE LIQUIDS, FLAMMABLE, N.O.S.
    Chemical Name or Material Diethylaminosulfur trifluoride
    Assay 95%

    Description

    Applications
    Diethylaminosulfur trifluoride (DAST) is used as a precursor to prepare 2,6-dimethoxybenzoyl fluoride and 2-thiazolines. It is a useful fluorinating agent used for a variety of compounds including alcohols, thioethers, alkenols and cyanohydrins. It also serves as a catalyst for Friedel-Crafts allylation reaction using tertiary cyclopropyl silyl ethers and in the rearrangement of homoallylic alcohols to unsaturated aldehydes. It plays an important role for gem difluorination of ketopipecolinic acids.

    Solubility
    Miscible with water, ethanol, benzene and acetonitrile.

    Notes
    Store in cool place. Moisture sensitive. It reacts with water and ethanol. Incompatible with water, acids and bases.

    GHS H Statement
    H331-H314-H318-H226
    Toxic if inhaled.
    Causes severe skin burns and eye damage.
    Causes serious eye damage.
    Flammable liquid and vapor.

    2°C to 8°C

    GHS P Statement
    P280-P303+P361+P353-P305+P351+P338-P310-P402
    Wear protective gloves/protective clothing/eye protection/face protection.
    IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
    IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do.
    Continue rinsing.
    Immediately call a POISON CENTER or doctor/physician.
    Store in a dry place.

    Danger

    SDS & Safety Documents

  • Description & Specifications
  • Safety and Handling

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