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Principaux documents

D0879

Sigma-Aldrich

Diisopropylfluorophosphate

Synonyme(s) :

DFP, DIFP, Diisopropyl phosphorofluoridate, Phosphoric acid diisopropyl ester fluoride

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About This Item

Formule linéaire :
[(CH3)2CHO]2POF
Numéro CAS:
Poids moléculaire :
184.15
Numéro Beilstein :
1723307
Numéro CE :
Numéro MDL:
Code UNSPSC :
12352200
ID de substance PubChem :
Nomenclature NACRES :
NA.77

Source biologique

synthetic (organic)

Niveau de qualité

Pression de vapeur

0.58 mmHg ( 20 °C)

Forme

liquid

Indice de réfraction

n20/D 1.385 (lit.)

Point d'ébullition

62 °C/9 mmHg (lit.)

Pf

−82 °C (lit.)

Solubilité

anhydrous isopropanol: 0.1-0.5 M (stable for months if stored at -70 °C)
H2O: 1.5% at 25 °C (very unstable (at pH 7.5, half-life = 1 hr); decomposed by alkali.)

Densité

1.06 g/mL at 25 °C (lit.)

Spectre d'activité de l'antibiotique

Gram-negative bacteria
Gram-positive bacteria

Mode d’action

protein synthesis | interferes

Température de stockage

2-8°C

Chaîne SMILES 

CC(C)OP(F)(=O)OC(C)C

InChI

1S/C6H14FO3P/c1-5(2)9-11(7,8)10-6(3)4/h5-6H,1-4H3

Clé InChI

MUCZHBLJLSDCSD-UHFFFAOYSA-N

Informations sur le gène

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Application

Diisopropylfluorophosphate has been used:
  • in combination with inactivated thrombin in Affi-Gel 10 column for the purification of recombinant human thrombomodulin with its chondroitin sulfate chain (shrTMCSA)
  • for inducing status epilepticus (SE) in adult rats
  • as an irreversible serine protease inhibitor in human neutrophil subcellular fractions

Actions biochimiques/physiologiques

Potent inhibitor of serine proteases such as trypsin and chymotrypsin, and of acetylcholinesterase; also inhibits cathepsin G, cholinesterase, coagulation factor Xa, leucocyte elastase, pancreatic elastase, tissue kallikrein, plasmin, subtilisin, and thrombin. Inhibition of acetylcholinesterase makes this compound especially toxic. Inhibits apoptosis induced by ricin and bacterial toxins.

Remarque sur l'analyse

Typically used at a concentration of 0.10 mM. A safer alternative inhibitor for serine protease is phenylmethylsulfonyl fluoride (PMSF).

Autres remarques

Stored properly at 2-8°C, in an unopened bottle, DIFP should be stable for a minimum of two years. DIFP
is unstable when exposed to moisture. DIFP will develop a dark yellow color upon decomposition.

Pictogrammes

Skull and crossbones

Mention d'avertissement

Danger

Mentions de danger

Classification des risques

Acute Tox. 1 Oral - Acute Tox. 2 Dermal - Acute Tox. 2 Inhalation

Code de la classe de stockage

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter


Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

Inhibition of the prostaglandin EP2 receptor is neuroprotective and accelerates functional recovery in a rat model of organophosphorus induced status epilepticus
Rojas A, et al.
Neuropharmacology, 93, 15-27 (2015)
Recombinant human thrombomodulincsa+: a tool for analyzing Plasmodium falciparum adhesion to chondroitin-4-sulfate
Parzy D, et al.
Microbes and Infection, 2(7), 779-788 (2000)
A molecular probe for the highly selective chromogenic detection of DFP, a mimic of Sarin and Soman nerve agents.
Raúl Gotor et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 17(43), 11994-11997 (2011-09-17)
Yonggang Li et al.
Toxicology and applied pharmacology, 262(2), 194-204 (2012-05-16)
Current medical countermeasures against organophosphate (OP) nerve agents are effective in reducing mortality, but do not sufficiently protect the CNS from delayed brain damage and persistent neurological symptoms. In this study, we examined the efficacy of neuregulin-1 (NRG-1) in protecting
A V Terry et al.
Neurotoxicology and teratology, 34(1), 1-8 (2011-10-26)
The acute toxicity of organophosphates (OPs) has been studied extensively; however, much less attention has been given to the subject of repeated exposures that are not associated with overt signs of toxicity (i.e., subthreshold exposures). The objective of this study

Articles

Enzyme Explorer Product Application Index for Elastase. Leukocyte elastase is a 29KDa serine endoprotease of the Proteinase S1 Family. It exists as a single 238 amino acid-peptide chain with four disulfide bonds.

Analytical Enzyme Chymotrypsin: Chymotrypsin is produced in the acinar cells of the pancreas as the inactive precursor, chymotrypsinogen.

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