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164992

Sigma-Aldrich

Sodium methoxide

reagent grade, 95%, powder

Sinónimos:

Sodium methylate

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About This Item

Fórmula lineal:
NaOCH3
Número de CAS:
124-41-4
Peso molecular:
54.02
Beilstein/REAXYS Number:
3592982
EC Number:
204-699-5
MDL number:
MFCD00012179
UNSPSC Code:
12352100
PubChem Substance ID:
24850111
NACRES:
NA.21
assay:
95%
grade:
reagent grade
form:
powder
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grade

reagent grade

Quality Level

200

vapor density

1.1 (vs air)

vapor pressure

50 mmHg ( 20 °C)

assay

95%

form

powder

autoignition temp.

851 °F

expl. lim.

36 %

SMILES string

[Na+].C[O-]

InChI

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

InChI key

WQDUMFSSJAZKTM-UHFFFAOYSA-N

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General description

Sodium methoxide is a sodium alkoxide.[1] Its reaction with unactivated aryl bromides in the presence of copper catalyst under various reaction conditions has been studied.[2] It reacts with aryl halides in the presence of a palladium catalyst in DMF to afford arenes.[3]

Application

Sodium methoxide has been used in the preparation of 5-(3-azidopropyl) uridine.[4] It may be used in the synthesis of methyl 2-cyano-lup-3-hydroxy-2-en-28-oate (CN-BA), a 2-cyano derivative of betulinic acid (BA).[5]
Sodium methoxide may be used as an alkali catalyst for the production of fatty acid methyl esters (biodiesel) from vegetable oils via transesterification.[6][7]

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Flam. Sol. 1 - Met. Corr. 1 - Self-heat. 1 - Skin Corr. 1A

supp_hazards

EUH014

Storage Class

4.2 - Pyrophoric and self-heating hazardous materials

wgk_germany

WGK 2

flash_point_f

91.4 °F - closed cup

flash_point_c

33 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificados de análisis (COA)

Lot/Batch Number
MKCW3686
STBL1037
STBL4806
MKCT0508
STBL1239

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Production of biodiesel through optimized alkaline-catalyzed transesterification of rapeseed oil.
Rashid U and Anwar F
Fuel: The Science and Technology of Fuel and Energy, 87(3), 265-273 (2008)
A review on biodiesel production using catalyzed transesterification
Leung DYC, et al
Applied Energy, 87(4), 1083-1095 (2010)
Palladium hydrides in organic synthesis. Reduction of aryl halides by sodium methoxide catalyzed by tetrakis (triphenylphosphine) palladium.
Zask A and Helquist P.
The Journal of Organic Chemistry, 43(8), 1619-1620 (1978)
Sudhakar Chintharlapalli et al.
Carcinogenesis, 28(11), 2337-2346 (2007-08-29)
Betulinic acid (BA) is a phytochemical triterpenoid acid from bark extracts and is cytotoxic to cancer cells and tumors. We modified the A-ring of BA to give a 2-cyano-1-en-3-one moiety and the effects of the 2-cyano-lup-1-en-3-oxo-20-oic acid (CN-BA), 2-cyano derivative
The copper catalysed reaction of sodium methoxide with aryl bromides. A mechanistic study leading to a facile synthesis of anisole derivatives.
Aalten HL, et al.
Tetrahedron, 45(17), 5565-5578 (1989)
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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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