1. Metabolic Enzyme/Protease
  2. Cathepsin
  3. PMSF

PMSF (Synonyms: Phenylmethylsulfonyl fluoride; Benzylsulfonyl fluoride)

Cat. No.: HY-B0496 Purity: >99.0%
Handling Instructions

PMSF is an irreversible serine/cysteine protease inhibitor commonly used in the preparation of cell lysates.

For research use only. We do not sell to patients.

PMSF Chemical Structure

PMSF Chemical Structure

CAS No. : 329-98-6

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10 mM * 1 mL in DMSO USD 55 In-stock
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Customer Review

Based on 9 publication(s) in Google Scholar

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PMSF is an irreversible serine/cysteine protease inhibitor commonly used in the preparation of cell lysates.

In Vitro

PMSF (2 mM) inhibits carbachol-stimulated inositol phosphate accumulation in the presence of Li+ by only 15%-19%. PMSF inhibition of phosphoinositide turnover is due to one or more steps following phosphoinositide breakdown[1]. PMSF inhibits the acylation of the inositol residue of GPI intermediates in bloodstream form T. brucei. PMSF inhihits the formntion of glycolipid C but does not inhibit fatty acid remodeling in vitro. PMSF inhihits GPI acylation and ethanolamine phosphatp addition in procyclic trypanosomes but not in Hela cells[2].

In Vivo

PMSF (0.1 mL/10 g b.wt, i.p.) produces antinociception as indicated by the dose-responsive increase in % MPE in the tail-flick latency evaluation, but fails to produce a clear dose-responsive inhibition of locomotion. Mice receiving i.p. injections of PMSF exhibit cannabinoid effects that includes antinociception, hypothermia and immobility with ED50 values of 86, 224 and 206 mg/kg, respectively. PMSF (30 mg/kg) pretreatment potentiates the effects of anandamide on tail-flick response (antinociception), spontaneous activity and mobility by 5-, 10- and 8-fold, respectively[3].

Molecular Weight









Room temperature in continental US; may vary elsewhere.

Powder -20°C 3 years
  4°C 2 years
In solvent -80°C 6 months
  -20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 20 mg/mL (114.82 mM; Need ultrasonic)

H2O : < 0.1 mg/mL (insoluble)

Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 5.7409 mL 28.7043 mL 57.4086 mL
5 mM 1.1482 mL 5.7409 mL 11.4817 mL
10 mM 0.5741 mL 2.8704 mL 5.7409 mL
*Please refer to the solubility information to select the appropriate solvent.
In Vivo:
  • 1.

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 2 mg/mL (11.48 mM); Clear solution

  • 2.

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in saline)

    Solubility: ≥ 2 mg/mL (11.48 mM); Clear solution

  • 3.

    Add each solvent one by one:  10% DMSO    90% corn oil

    Solubility: ≥ 2 mg/mL (11.48 mM); Clear solution

*All of the co-solvents are provided by MCE.
Animal Administration

Male ICR mice weighing 18 to 25 g are used in the assay. PMSF is dissolved in sesame oil and administered i.p. at a volume of 0.1 mL/10 g b.wt. PMSF is always administered 10 min before i.v. anandamide or vehicle injections. Mice are acclimated to the evaluation room overnight without interruption of food or water. After i.v. anandamide or vehicle administration each animal is evaluated as follows: tail-flick latency (antinociception) response at 5 min and spontaneous (locomotor) activity at 5 to 15 min; or core (rectal) temperature at 5 min and ring-immobility (catalepsy) at 5 to 10 min.

MCE has not independently confirmed the accuracy of these methods. They are for reference only.


Purity: >99.0%

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PMSFPhenylmethylsulfonyl fluorideBenzylsulfonyl fluorideCathepsinInhibitorinhibitorinhibit

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