Alfa Aesar™ 3-Methyl-2-pyrazolin-5-one, 98+%

Manufacturer: Alfa Aesar™ A1025318

Quantity 50g

 View more versions of this product

Catalog No. AAA1025318

  N/A
Add to Cart
  Our pricing system is currently unavailable. You are viewing list price.
You can save item(s) to your list now to purchase when our pricing system is available.

    Chemical Identifiers

    CAS 108-26-9
    Molecular Formula C4H6N2O
    Formula Weight 98.11
    MDL Number MFCD00020699
    Synonym 2,4-Dihydro-5-methyl-3H-pyrazol-3-one
    Chemical Name or Material 3-Methyl-2-pyrazolin-5-one

    Specifications

    Formula Weight 98.11
    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.
    MDL Number MFCD00020699
    CAS 108-26-9
    Molecular Formula C4H6N2O
    Synonym 2,4-Dihydro-5-methyl-3H-pyrazol-3-one
    Health Hazard 1 Warning
    Quantity 50g
    TSCA TSCA
    Melting Point 220° to 224°C
    Health Hazard 2 GHS H Statement
    H315-H319-H335
    Causes skin irritation.
    Causes serious eye irritation.
    May cause respiratory irritation.
    RTECS Number UQ9451500
    Chemical Name or Material 3-Methyl-2-pyrazolin-5-one
    Assay ≥98%

    Description

    Applications
    3-Methyl-2-pyrazolin-5-one is used in the preparation of spirocyclic [indole-3,4 ft.-pyrano[2,3-c]pyrazole] by reacting with isatins and malonitrile in the presence of sodium bromide as electrolyte.

    Solubility
    Slightly soluble in ethanol.

    Notes
    Incompatible with oxidizing agents.

    GHS H Statement
    H315-H319-H335
    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

Related Products


Product Content Feedback

We continue to work to improve your shopping experience and your feedback regarding this content is very important to us. Please use the form below to provide feedback related to the content on this product.

Product Title

By clicking Submit, you acknowledge that you may be contacted by Fisher Scientific in regards to the feedback you have provided in this form. We will not share your information for any other purposes. All contact information provided shall also be maintained in accordance with our Privacy Policy.

Cancel Submit