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
164283
Methyl trifluoromethanesulfonate
≥98%
Synonym(s):
Methyl triflate
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
10 g | Available to ship onJune 23, 2026fromMILWAUKEE | $93.80 |
50 g | Available to ship onJune 23, 2026fromMILWAUKEE | $329.00 |
250 g | Usually ships in 5 business days. (Orders outside of US, please allow an additional 1-2 weeks for delivery) | $891.00 $668.25 |
About This Item
Quality Segment
assay
≥98%
form
liquid
refractive index
n20/D 1.326 (lit.)
bp
94-99 °C (lit.)
density
1.45 g/mL at 25 °C (lit.)
functional group
fluoro, triflate
storage temp.
2-8°C
SMILES string
COS(=O)(=O)C(F)(F)F
InChI
1S/C2H3F3O3S/c1-8-9(6,7)2(3,4)5/h1H3
InChI key
OIRDBPQYVWXNSJ-UHFFFAOYSA-N
General description
Application
- In the determination of polysulfides, zerovalent sulfur in sulfide-rich water wells, and polysulfide species in electrolyte of a lithium–sulfur battery using chromatography-based techniques.
- In reactions with potassium enolates.
- For the conversion of amines to methyl ammonium triflates.[1]
1 of 1
This Item | |||
|---|---|---|---|
| assay ≥98% | assay - | assay 99% | assay 97% |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 100 |
| storage temp. 2-8°C | storage temp. 2-30°C | storage temp. - | storage temp. - |
| bp 94-99 °C (lit.) | bp 99 °C/1013 hPa | bp 115 °C (lit.) | bp 45-46 °C/0.03 mmHg |
| form liquid | form liquid | form liquid | form - |
| refractive index n20/D 1.326 (lit.) | refractive index - | refractive index n20/D 1.336 (lit.) | refractive index n20/D 1.415 (lit.) |
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Danger
Hazard Classifications
Acute Tox. 1 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B
Storage Class
3 - Flammable liquids
wgk
WGK 3
flash_point_f
100.4 °F - closed cup
flash_point_c
38 °C - closed cup
ppe
Faceshields, Gloves, Goggles, 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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