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
129925
Methyl methanesulfonate
99%
Synonym(s):
Methanesulfonic acid methyl ester
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About This Item
Quality Level
assay
99%
form
liquid
refractive index
n20/D 1.414 (lit.)
bp
202-203 °C (lit.)
density
1.3 g/mL at 25 °C (lit.)
functional group
sulfonic acid
SMILES string
COS(C)(=O)=O
InChI
1S/C2H6O3S/c1-5-6(2,3)4/h1-2H3
InChI key
MBABOKRGFJTBAE-UHFFFAOYSA-N
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This Item | M0880 | 64296 | 537365 |
|---|---|---|---|
| assay 99% | assay - | assay ≥97% | assay ≥98.5% (GC) |
| Quality Level 100 | Quality Level 200 | Quality Level - | Quality Level 200 |
| form liquid | form liquid | form liquid | form - |
| bp 202-203 °C (lit.) | bp 85-86 °C/10 mmHg (lit.) | bp 103-104 °C/25 mmHg (lit.) | bp 169-170 °C/70 mmHg (lit.) |
| refractive index n20/D 1.414 (lit.) | refractive index n20/D 1.418 (lit.) | refractive index n20/D 1.422 (lit.) | refractive index n20/D 1.419 (lit.) |
| density 1.3 g/mL at 25 °C (lit.) | density 1.206 g/mL at 20 °C | density 1.09 g/mL at 25 °C (lit.) | density 1.076 g/mL at 25 °C (lit.) |
Principle
signalword
Danger
Hazard Classifications
Acute Tox. 3 Oral - Aquatic Chronic 2 - Carc. 2 - Eye Irrit. 2 - Muta. 1B - Repr. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT RE 2 Inhalation
target_organs
Lungs
Storage Class
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
wgk_germany
WGK 3
flash_point_f
219.2 °F - closed cup
flash_point_c
104 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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What is the solubility of item 129925, Methyl methanesulfonate, in DMSO? Additionally, what are the other solvents that can be used for this item?
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The solubility of product 129925, Methyl methanesulfonate, in DMSO is slightly soluble. It is also soluble in water at a rate of 200 g/L (20 ºC).
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