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433063

Sigma-Aldrich

Sodium methanesulfinate

technical grade, 85%

Synonym(s):

Methanesulfinic acid sodium salt

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About This Item

Linear Formula:
CH3SO2Na
CAS Number:
20277-69-4
Molecular Weight:
102.09
EC Number:
243-669-6
MDL number:
MFCD00040392
UNSPSC Code:
12352100
PubChem Substance ID:
24867119
NACRES:
NA.22
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grade

technical grade

Quality Level

100

Assay

85%

mp

222-226 °C (dec.) (lit.)

functional group

sulfinic acid

SMILES string

[Na+].CS([O-])=O

InChI

1S/CH4O2S.Na/c1-4(2)3;/h1H3,(H,2,3);/q;+1/p-1

InChI key

LYPGDCWPTHTUDO-UHFFFAOYSA-M

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General description

Sodium methanesulfinate is an aliphatic sodium sulfinate. Conjugate addition of sodium methanesulfinate to vinyl heterocycles has been described.[1] Cross-coupling reaction between aryl boronic acid and sodium methanesulfinate has been studied.[2] Its stock solution was prepared from methanesulfonic acid by adding one equivalent of sodium hydroxide and diluting it to 4M.[3]

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000215244
0000215244
0000096501
0000075485
0000047601

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Conjugate addition of sodium methanesulfinate to vinyl pyridines and diazines for the synthesis of aliphatic sulfones.
Schaaf GM, et al.
Tetrahedron Letters, 50(17), 1928-1933 (2009)
Cecilia Arsene et al.
Environmental science & technology, 36(23), 5155-5163 (2003-01-14)
Dimethyl sulfoxide (CH3S(O)CH3: DMSO) is an important product of dimethyl sulfide (CH3SCH3: DMS) photooxidation. The mechanism of the OH-radical initiated oxidation of DMSO is still highly uncertain and a major aim of recent studies has been to establish if methane
C F Babbs et al.
Free radical biology & medicine, 6(5), 493-503 (1989-01-01)
A major impediment to the confirmation of free radical mechanisms in pathogenesis is a lack of direct, chemical evidence that oxygen centered free radicals actually arise in living tissues in quantities sufficient to cause serious damage. This investigation was conducted
Jerry J Wu et al.
Journal of hazardous materials, 149(1), 218-225 (2007-05-01)
The present study investigates the oxidation of dimethyl sulfoxide (DMSO) by conventional ozonation and the advanced oxidation processes (AOPs). The major degradation products identified were methanesulfinate, methanesulfonate, formaldehyde, and formic acid in ozonation process. The subsequent degradation of intermediates shows
One-pot synthesis of aryl sulfoxides and sulfonium salts from sulfinic acid as a novel sulfurizing agent.
Yamamoto K, et al.
Chemical Communications (Cambridge, England), 17, 2099-2100 (1996)
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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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