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
471356
Methanesulfonic acid
≥99.0%, liquid
Synonym(s):
Mesylic acid, MsOH
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
25 mL | Available to ship TODAY | $69.20 |
100 mL | Available to ship TODAY | $78.40 |
500 mL | Available to ship TODAYfromMILWAUKEE | $150.00 |
2.5 L | Available to ship TODAYfromMILWAUKEE | $311.00 |
5 L | Estimated to ship onNovember 25, 2026fromMILWAUKEE | $499.00 |
Estimated to ship TODAY | $1,900.00 |
About This Item
$69.20
Available to ship TODAYDetails
Product Name
Methanesulfonic acid, ≥99.0%
Quality Segment
vapor density
3.3 (vs air), [3.3 (vs air)] (vs air)
vapor pressure
1 mmHg ( 20 °C)
assay
≥99.0%
form
liquid
refractive index
n20/D 1.429 (lit.)
pH range
<1
bp
[167 °C/10 mmHg (lit.)], 167 °C/10 mmHg (lit.)
mp
17-19 °C (lit.)
solubility
water: soluble 1,000 g/L at 20 °C
density
1.481 g/mL at 25 °C (lit.)
functional group
sulfonic acid
SMILES string
O=S(O)(C)=O
InChI
1S/CH4O3S/c1-5(2,3)4/h1H3,(H,2,3,4)
InChI key
AFVFQIVMOAPDHO-UHFFFAOYSA-N
General description
Application
- As a catalyst to produce linear alkylbenzenes by the addition reaction between long-chain olefins and benzene.
- To prepare polyaniline (PANI)/graphene composites with enhanced thermal and electrical properties.
- As a catalyst for the transformation of glucose/xylose mixtures to levulinic acid and furfural.
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This Item | ||
|---|---|---|
| description ≥99.0% | description 4 M (with 0.2% (w/v) tryptamine) | description 70 wt. % in H2O |
| assay ≥99.0% | assay - | assay - |
| Quality Level 200 | Quality Level 200 | Quality Level 200 |
| form liquid | form liquid | form - |
| solubility water: soluble 1,000 g/L at 20 °C | solubility - | solubility - |
| vapor pressure 1 mmHg ( 20 °C) | vapor pressure - | vapor pressure <1 mmHg ( 20 °C) |
| vapor density 3.3 (vs air), [3.3 (vs air)] (vs air) | vapor density - | vapor density 3.3 (vs air) |
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Signal Word
Danger
Hazard Codes
Precautionary Statements
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B - STOT SE 3
Target Organs
Respiratory system
Storage Class
8A - Combustible corrosive hazardous materials
Flash Point (°F)
372.2 °F - closed cup
Flash Point (°C)
189 °C - closed cup
PPE (personal protective equipment)
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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What is the method of synthesis of this? Does it start with methane sulfonyl chloride?
1 answer-
Methods of preparation for this product are considered proprietary.
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