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Merck
CN

D126004

Diisopropylfluorophosphate

Synonym(s):

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

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About This Item

Linear Formula:
[(CH3)2CHO]2POF
CAS Number:
Molecular Weight:
184.15
EC Number:
200-247-6
UNSPSC Code:
12352103
MDL number:
Beilstein/REAXYS Number:
1723307
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InChI

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

InChI key

MUCZHBLJLSDCSD-UHFFFAOYSA-N

SMILES string

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

vapor pressure

0.58 mmHg ( 20 °C)

refractive index

n20/D 1.385 (lit.)

bp

62 °C/9 mmHg (lit.)

mp

−82 °C (lit.)

density

1.06 g/mL at 25 °C (lit.)

Application

Potent acetylcholinesterase inhibitor.

Biochem/physiol Actions

Potent inhibitor of serine proteases and acetylcholinesterase; inhibits cathepsin G, cholinesterase, coagulation factor Xa, leucocyte elastase, pancreatic elastase, tissue kallikrein, plasmin, subtilisin, and thrombin. Inhibits apoptosis induced by ricin and bacterial toxins.
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.

Analysis Note

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

pictograms

Skull and crossbones

signalword

Danger

Hazard Classifications

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

Storage Class

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

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

Regulatory Information

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P Marchot et al.
The Journal of biological chemistry, 268(17), 12458-12467 (1993-06-15)
Iodination of fasciculin 3 (FAS3) from Dendroaspis viridis venom provided us with a fully active specific probe of fasciculin binding sites on rat brain acetylcholinesterase (AChE). Binding and inhibition are concomitant, as association and inhibition rate constants k1 and ki
G Olmos et al.
European journal of pharmacology, 236(3), 467-476 (1993-06-04)
The specific binding of the agonists [3H]clonidine and [3H]UK 14304 (bromoxidine) and of the antagonist [3H]RX 821002 (2-metoxy idazoxan) to rat brain membranes, as well as clonidine-induced mydriasis, clonidine-induced inhibition of brain (3,4-dihydroxyphenylalaninme) DOPA synthesis and clonidine-induced inhibition of twitch
Supratik Dutta et al.
Bioorganic & medicinal chemistry, 18(6), 2265-2274 (2010-03-02)
Two new monocyclic analogs of the natural AChE inhibitor cyclophostin and two exocyclic enol phosphates were synthesized. The potencies and mechanisms of inhibition of the bicyclic and monocyclic enol phosphonates and the exocyclic enol phosphates toward human AChE are examined.
Gabriel Birkus et al.
Antimicrobial agents and chemotherapy, 51(2), 543-550 (2006-12-06)
GS-7340 and GS-9131 {9-[(R)-2-[[(S)-[[(S)-1-(isopropoxycarbonyl)ethyl]amino]phenoxyphosphinyl]methoxy]-propyl]adenine and 9-(R)-4'-(R)-[[[(S)-1-[(ethoxycarbonyl)ethyl]amino]phenoxyphosphinyl]methoxy]-2'-fluoro-1'-furanyladenine, respectively} are novel alkylalaninyl phenyl ester prodrugs of tenofovir {9-R-[(2-phosphonomethoxy)propyl]adenine} (TFV) and a cyclic nucleotide analog, GS-9148 (phosphonomethoxy-2'-fluoro-2', 3'-dideoxydidehydroadenosine), respectively. Both prodrugs exhibit potent antiretroviral activity against both wild-type and drug-resistant human immunodeficiency virus
Leah Tong et al.
Antimicrobial agents and chemotherapy, 51(10), 3498-3504 (2007-08-01)
Human immunodeficiency virus protease inhibitors (PIs) modestly affect the plasma pharmacokinetics of tenofovir (TFV; -15% to +37% change in exposure) following coadministration with the oral prodrug TFV disoproxil fumarate (TDF) by a previously undefined mechanism. TDF permeation was found to

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