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/418/501/product-dating-information-06-25-mk.pdf
208795
S-Methyl methanethiosulfonate
97%
Synonym(s):
S-Methyl thiomethanesulfonate, MMTS
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
1 g | Check Cart for Availability | $49.60 |
10 g | Check Cart for Availability | $255.00 |
About This Item
$49.60
Quality Segment
assay
97%
form
liquid
refractive index
n20/D 1.513 (lit.)
bp
69-71 °C/0.4 mmHg (lit.)
solubility
DMF: soluble 1:1, chloroform: soluble 200 ul per mL, clear, faintly yellow-green, water: soluble 1:5
density
1.337 g/mL at 25 °C (lit.)
functional group
disulfide
SMILES string
CSS(C)(=O)=O
InChI
1S/C2H6O2S2/c1-5-6(2,3)4/h1-2H3
InChI key
XYONNSVDNIRXKZ-UHFFFAOYSA-N
General description
1 of 1
This Item | |||
|---|---|---|---|
| description 97% | description purum, ≥98.0% (GC) | description 99% | description - |
| assay 97% | assay ≥98.0% (GC) | assay 99% | assay - |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 100 |
| solubility water: soluble 1:5, DMF: soluble 1:1, chloroform: soluble 200 ul per mL, clear, faintly yellow-green | solubility chloroform: 750mg + 5 ml Chloroform mg/mL, colorless to light greenish-yellow | solubility - | solubility - |
| refractive index n20/D 1.513 (lit.) | refractive index n20/D 1.513 | refractive index - | refractive index n/D 1.586 |
| bp 69-71 °C/0.4 mmHg (lit.) | bp 69-71 °C/0.4 mmHg (lit.) | bp - | bp - |
| form liquid | form - | form - | form liquid |
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PPE (personal protective equipment)
Eyeshields, Gloves, type ABEK (EN14387) respirator filter
Storage Class
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
WGK
WGK 3
Signal Word
Danger
Hazard Codes
Precautionary Statements
Hazard Classifications
Acute Tox. 3 Oral - Skin Sens. 1
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How can I determine the shelf life / expiration / retest date of this product?
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What is the storage temperature of S-Methyl methanethiosulfonate 97% (Product No. 208795)?
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This product may be stored in room temperature.
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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 molarity of this reagent?
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The material is considered neat/pure (i.e. it is not a solution), so the molarity would be 10.59 molar, multiplied by whatever the lot-specific purity is, which can be found on the COA. The molarity value was determined by dividing the density by the molecular weight and correcting for units.
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