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alpha-Toluenesulfonyl fluoride, 99%, Thermo Scientific Chemicals
Description
α-Toluenesulfonyl fluoride (PMSF) is used in the preparation of cell lysates to inhibit protein digestion. It is a widely used fatty acid amid hydrolase (FAAH) inhibitor for pretreatment of brain membrane preparations when testing CB1 receptor activity.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
α-Toluenesulfonyl fluoride (PMSF) is used in the preparation of cell lysates to inhibit protein digestion. It is a widely used fatty acid amid hydrolase (FAAH) inhibitor for pretreatment of brain membrane preparations when testing CB1 receptor activity.
Solubility
Soluble in ether, benzene, anhydrous ethanol, methanol, 2- propane. Hydrolyses in water.
Notes
Moisture sensitive. Store away from strong oxidizing agents, amines, bases, water/ moisture. Store at 4°C

Specifications
Specifications
Melting Point | 92°C to 94°C |
Quantity | 5 g |
UN Number | UN2923 |
Beilstein | 2088311 |
Sensitivity | Moisture sensitive |
Solubility Information | Soluble in ether,benzene,anhydrous ethanol,methanol,2- propane. Hydrolyses in water. |
Formula Weight | 174.19 |
Percent Purity | 99% |
Chemical Name or Material | alpha-Toluenesulfonyl fluoride |
Safety and Handling


- alpha-Toluenesulfonyl fluoride
- Danger
- Acute toxicity Category 3
- Serious eye damage/eye irritation Category 1
- Skin corrosion/irritation Category 1 B
- H301-Toxic if swallowed.
- H314-Causes severe skin burns and eye damage.
- H318-Causes serious eye damage.
- P280-Wear protective gloves/protective clothing/eye protection/face protection.
- P301+P310-IF SWALLOWED: Immediately call a POISON CENTER/doctor /
- P301+P330+P331-IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
- P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
- P310-Immediately call a POISON CENTER/doctor/.
- MIXTURE LIST-Contains : Benzenemethanesulfonyl fluoride
RUO – Research Use Only
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