Alfa Aesar™ (S)-(-)-alpha-Methoxy-alpha-(trifluoromethyl)phenylacetic acid, 99%

Manufacturer: Alfa Aesar™ B2311788

Quantity 2.5g

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Catalog No. AAB2311788

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    Chemical Identifiers

    CAS 17257-71-5
    Molecular Formula C10H9F3O3
    Formula Weight 234.18g/mol
    MDL Number MFCD00064200
    Beilstein 3591561
    Merck Index 14,6280
    Synonym (-)-Mosher's acid; (-)-MTPA
    Chemical Name or Material (S)-(-)-alpha-Methoxy-alpha-(trifluoromethyl)phenylacetic acid

    Specifications

    Boiling Point 105° to 107°C (1mmHg)
    Melting Point 43° to 45°C
    Quantity 2.5g
    Flash Point >110°C (230°F)
    Optical Rotation −72° (c=2 in Methanol)
    CAS 17257-71-5
    Molecular Formula C10H9F3O3
    Formula Weight 234.18g/mol
    MDL Number MFCD00064200
    Beilstein 3591561
    Merck Index 14,6280
    Synonym (-)-Mosher's acid; (-)-MTPA
    Health Hazard 1 Warning
    Health Hazard 2 GHS H Statement
    H315-H319-H335
    Causes skin irritation.
    Causes serious eye irritation.
    May cause respiratory irritation.
    Health Hazard 3 GHS P Statement
    P261-P280-P305+P351+P338-P304+P340-P405-P501a
    Avoid breathing dust/fume/gas/mist/vapors/spray.
    Wear protective gloves/protective clothing/eye protection/face protection.
    IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
    IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.
    Store locked up.
    Dispose of contents/container in accordance with local/regional/national/international regulations.
    Recommended Storage 2° to 8°C
    Chemical Name or Material (S)-(-)-alpha-Methoxy-alpha-(trifluoromethyl)phenylacetic acid
    Assay 99%

    Description

    Applications
    (S)-(-)-alpha-Methoxy-alpha-(trifluoromethyl)phenylacetic acid is used as a chiral derivatizing agent, it reacts with an alcohol or amine of unknown stereochemistry to form an ester or amide. The absolute configuration of the ester or amide is then determined by proton and/or 19F NMR spectroscopy.

    Solubility
    Readily soluble in hexane, ether, THF, CH2Cl2, benzene.

    Notes
    Hygroscopic. Store under inert gas. Store away from oxidizing agents, moisture.

    GHS H Statement
    H315-H319-H335
    Causes skin irritation.
    Causes serious eye irritation.
    May cause respiratory irritation.

    2° to 8°C

    GHS P Statement
    P261-P280-P305+P351+P338-P304+P340-P405-P501a
    Avoid breathing dust/fume/gas/mist/vapors/spray.
    Wear protective gloves/protective clothing/eye protection/face protection.
    IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
    IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.
    Store locked up.
    Dispose of contents/container in accordance with local/regional/national/international regulations.

    Warning

    SDS & Safety Documents

  • Description & Specifications
  • Safety and Handling

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