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403067

Sigma-Aldrich

Natriummethoxid -Lösung

ACS reagent, 0.5 M CH3ONa in methanol (0.5N)

Synonym(e):

Natriummethylat -Lösung

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100 ML
CHF 82.00
250 ML
CHF 194.00
4 X 100 ML
CHF 226.00
800 ML
CHF 264.00

CHF 82.00


Voraussichtliches Versanddatum13. April 2025


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100 ML
CHF 82.00
250 ML
CHF 194.00
4 X 100 ML
CHF 226.00
800 ML
CHF 264.00

About This Item

Lineare Formel:
CH3ONa
CAS-Nummer:
Molekulargewicht:
54.02
Beilstein:
3592982
MDL-Nummer:
UNSPSC-Code:
12352100
PubChem Substanz-ID:
NACRES:
NA.21
Qualität:
ACS reagent
Form:
liquid

CHF 82.00


Voraussichtliches Versanddatum13. April 2025


Bulk-Bestellung anfordern

Qualität

ACS reagent

Qualitätsniveau

Form

liquid

Konzentration

0.5 M CH3ONa in methanol (0.5N)

Farbe

, clarity of solution to pass

bp

64.6 °C

Dichte

0.809 g/mL at 25 °C

SMILES String

[Na+].C[O-]

InChI

1S/CH3O.Na/c1-2;/h1H3;/q-1;+1

InChIKey

WQDUMFSSJAZKTM-UHFFFAOYSA-N

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Allgemeine Beschreibung

Natriummethoxid-Lösung besteht aus 0,5M Natriummethoxid in 0,5N Methanol. Es ist eine häufig verwendete organische Base für die organische Synthese.

Anwendung

Natriummethoxid-Lösung kann in den folgenden Verfahren eingesetzt werden:
  • Als Lösungsmittel bei der Synthese von Disulfiden aus entsprechenden Thiolen.[1]
  • Für die Extraktion von Fettsäuremethylestern mittels Transesterifizierung.[2]
  • Synthese von (1R,2R,3R,7aS)-1,2-Dibenzylox-y-3-tert-Butyldiphenylsilyloxymethylpyrrolizidin-5-on.[3]

Signalwort

Danger

Gefahreneinstufungen

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1A - STOT SE 1

Zielorgane

Eyes,Central nervous system

Lagerklassenschlüssel

3 - Flammable liquids

WGK

WGK 2

Flammpunkt (°F)

51.8 °F - closed cup

Flammpunkt (°C)

11.0 °C - closed cup

Persönliche Schutzausrüstung

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter


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Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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