Alfa Aesar™ 15-Crown-5, 98%

Manufacturer: Alfa Aesar™ A1226514

Quantity 25g

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Catalog No. AAA1226514

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    Chemical Identifiers

    CAS 33100-27-5
    Molecular Formula C10H20O5
    Formula Weight 220.27g/mol
    MDL Number MFCD00005110
    Beilstein 1618144
    Synonym 1,4,7,10,13-Pentaoxacyclopentadecane
    Chemical Name or Material 15-Crown-5

    Specifications

    Quantity 25g,25g
    Boiling Point 150° to 155°C (0.5mmHg)
    Flash Point >110°C (230°F)
    CAS 33100-27-5
    Molecular Formula C10H20O5
    Formula Weight 220.27g/mol
    MDL Number MFCD00005110
    Beilstein 1618144
    Synonym 1,4,7,10,13-Pentaoxacyclopentadecane
    Health Hazard 1 Warning
    Health Hazard 2 GHS H Statement
    H302-H315-H319-H335
    Harmful if swallowed.
    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.
    RTECS Number SB0200000
    TSCA TSCA
    Chemical Name or Material 15-Crown-5
    Assay 98%

    Description

    Applications
    15-Crown-5 is used as an efficient phase transfer catalyst and as a complexing agent. It is used to isolate oxonium ion (H7O3)+ salts especially from a solution of tetrchloroauric acid. It catalyzes the O-alkylation of the sodium salts of carboxylic acids in the penicillin and cephalosporin series, thereby facilitating esterification reaction without usage of acid. It is also used to facilitate the Williamson synthesis of ethers with hindered alcohols and sodium hydride. It is used with lithium aluminum hydride, for performing reduction reactions in hydrocarbon solvents. Further, it is involved in the Horner-Wadsworth-Emmons reaction to prepare stilbenes from aldehydes.

    Solubility
    Miscible with organic solvents.

    Notes
    Hygroscopic. Moisture sensitive. Incompatible with strong oxidizing agents and strong acids.

    GHS H Statement
    H302-H315-H319-H335
    Harmful if swallowed.
    Causes skin irritation.
    Causes serious eye irritation.
    May cause respiratory irritation.

    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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