Alfa Aesar™ Sulfur trioxide-pyridine complex, 98%, active SO3 »48-50%

Manufacturer: Alfa Aesar™ A1220230

Quantity 250g

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Catalog No. AAA1220230

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    Chemical Identifiers

    CAS 26412-87-3
    Molecular Formula C5H5NO3S
    Formula Weight 159.16g/mol
    MDL Number MFCD00012437
    UN Number UN3261
    Beilstein 3704116
    Synonym Pyridine-sulfur trioxide complex
    Chemical Name or Material Sulfur trioxide-pyridine complex, Active SO3 ≈48 to 50%

    Specifications

    Melting Point ≈155° to 165°C
    Quantity 250g
    CAS 26412-87-3
    Molecular Formula C5H5NO3S
    Formula Weight 159.16g/mol
    MDL Number MFCD00012437
    UN Number UN3261
    Beilstein 3704116
    Synonym Pyridine-sulfur trioxide complex
    Health Hazard 1 Danger
    Health Hazard 2 GHS H Statement
    H314-H318-H302
    Causes severe skin burns and eye damage.
    Causes serious eye damage.
    Harmful if swallowed.
    Health Hazard 3 GHS P Statement
    P260-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501a
    Do not breathe dust/fume/gas/mist/vapors/spray.
    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.
    IF SWALLOWED: Rinse mouth.
    Do NOT induce vomiting.
    Store locked up.
    Dispose of contents/container in accordance with local/regional/national/international regulations.
    DOT Information Transport Hazard Class: 8; Packing Group: II; Proper Shipping Name: CORROSIVE SOLID, ACIDIC, ORGANIC, N.O.S.
    TSCA TSCA
    Chemical Name or Material Sulfur trioxide-pyridine complex, Active SO3 ≈48 to 50%
    Assay 98%

    Description

    Applications
    Sulfur trioxide-pyridine complex is used for sulfations of alcohols, sulfonations, deoxygenations and other reductions, oxidations with dimethyl sulfoxide. It is also used as a source of sulfur trioxide especially in the preparation of sulfate esters. Further, it is used as an activating electrophile in a Parikh-Doering oxidation. In addition to this, it is also used in the preparation and anticoagulation test of sulfated silk fibroin.

    Solubility
    Soluble in polar organic solvents.

    Notes
    Moisture sensitive. Incompatible with strong oxidizing agents.

    GHS H Statement
    H314-H318-H302
    Causes severe skin burns and eye damage.
    Causes serious eye damage.
    Harmful if swallowed.

    GHS P Statement
    P260-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501a
    Do not breathe dust/fume/gas/mist/vapors/spray.
    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.
    IF SWALLOWED: Rinse mouth.
    Do NOT induce vomiting.
    Store locked up.
    Dispose of contents/container in accordance with local/regional/national/international regulations.

    Danger

    SDS & Safety Documents

  • Description & Specifications
  • Safety and Handling

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