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Sigma-Aldrich

Dibutyl phosphate

≥97.0% (T)

Synonym(s):

Phosphoric acid dibutyl ester

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About This Item

Linear Formula:
(CH3CH2CH2CH2O)2P(O)OH
CAS Number:
107-66-4
Molecular Weight:
210.21
Beilstein/REAXYS Number:
607224
EC Number:
203-509-8
MDL number:
MFCD00015245
UNSPSC Code:
12352100
PubChem Substance ID:
329760992
NACRES:
NA.22

assay

≥97.0% (T)

form

liquid

density

1.06 g/mL at 20 °C (lit.)

SMILES string

CCCCOP(O)(=O)OCCCC

InChI

1S/C8H19O4P/c1-3-5-7-11-13(9,10)12-8-6-4-2/h3-8H2,1-2H3,(H,9,10)

InChI key

JYFHYPJRHGVZDY-UHFFFAOYSA-N

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General description

Dibutyl phosphate, also known as Phosphoric acid dibutyl ester, is an organophosphate compound with a long alkyl chain that is commonly used as an organocatalyst for polymer synthesis via ring-opening polymerization of cyclic esters and to catalyzed transesterification reactions.

Application

Dibutyl phosphate can be used as a reactant to synthesize:
  • Glycosyl phosphates by using 1,2-orthoesters.
  • 2-Aminophosphatesvia catalyst-free regioselective and enantiospecific SN2-type ring opening reaction with aziridines.
It can also be used as a catalyst to synthesize polyesters via ring-opening polymerization.

Features and Benefits

  • Inherently biodegradable
  • Stable in neutral, acidic, or alkaline solutions

pictograms

Health hazardCorrosion
GHS08,GHS05

signalword

Danger

hcodes

H314,H351

Hazard Classifications

Carc. 2 - Eye Dam. 1 - Skin Corr. 1B

Storage Class

8A - Combustible corrosive hazardous materials

wgk_germany

WGK 1

flash_point_f

352.4 °F - closed cup

flash_point_c

178 °C - closed cup

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

Certificates of Analysis (COA)

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Journal of analytical toxicology, 32(9), 721-727 (2008-11-22)
Organophosphorus (OP) pesticides are highly toxic but used commonly worldwide, nevertheless. Their urinary dialkylphosphate (DAP) metabolites are widely used for exposure assessment of OP pesticides in humans. We previously developed an analytical method to measure urinary DAPs utilizing solid-phase extraction
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