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Sigma-Aldrich

Diethyl pyrocarbonate

96% (NT)

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Synonym(s):
DEP, DEPC, Diethyl dicarbonate, Diethyl oxydiformate, Ethoxyformic acid anhydride
Linear Formula:
O(COOC2H5)2
CAS Number:
1609-47-8
Molecular Weight:
162.14
Beilstein:
637031
EC Number:
216-542-8
MDL number:
MFCD00009106
PubChem Substance ID:
24849799
NACRES:
NA.22

Quality Level

200

Assay

96% (NT)

form

liquid

refractive index

n20/D 1.398 (lit.)

bp

93-94 °C/18 mmHg (lit.)

density

1.101 g/mL at 25 °C (lit.)

shipped in

wet ice

storage temp.

2-8°C

SMILES string

CCOC(=O)OC(=O)OCC

InChI

1S/C6H10O5/c1-3-9-5(7)11-6(8)10-4-2/h3-4H2,1-2H3

InChI key

FFYPMLJYZAEMQB-UHFFFAOYSA-N

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General description

Diethyl pyrocarbonate reacts selectively with the single-stranded loops of cruciform structures. The irreversible inactivation of ribonuclease with diethylpyrocarbonate has been studied.

Application

Diethyl pyrocarbonate was used as:
  • nuclease inhibitor for the extraction of undegraded nucleic acids from etiolated and green plant tissues
  • an antimicrobial additive
  • ribonuclease inhibitor
  • histidine residue modifier
  • reagent for conversion of imines to carbamates
Modification reagent for His and Tyr residues in proteins. Robust probe for structural disruptions in dsDNA, reacting with fully or partially unstacked bases.

Biochem/physiol Actions

Inactivates RNase in solution at about 0.1% (v/v), thus protecting RNA against degradation.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302

Precautionary Statements

P264 - P270 - P301 + P312 - P501

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

156.2 °F - closed cup

Flash Point(C)

69 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Heather L Walsh et al.
PloS one, 15(8), e0236104-e0236104 (2020-08-11)
There is an increasing emphasis on effects-based monitoring to document responses associated with exposure to complex mixtures of chemicals, climate change, pathogens, parasites and other environmental stressors in fish populations. For decades aquatic monitoring programs have included the collection of
Isolation of plant RNA.
R Hodge
Methods in molecular biology (Clifton, N.J.), 28, 37-40 (1994-01-01)
A mechanism of the irreversible inactivation of bovine pancreatic ribonuclease by diethylpyrocarbonate. A general reaction of diethylpyrocarbonate . A general reaction of diethylpyrocarbonate with proteins.
B Wolf et al.
European journal of biochemistry, 13(3), 519-525 (1970-04-01)
Tetrahedron, 48, 3445-3445 (1992)
P D Pelton et al.
The Journal of biological chemistry, 267(9), 5916-5920 (1992-03-25)
The pH dependence of myo-inositol monophosphatase may indicate a role for histidine residues in the catalytic mechanism (Ganzhorn, A. J., and Chanal, M.-C. (1990) Biochemistry 29, 6065-6071). This possibility was investigated by chemical modification. At pH 6.0 and 25 degrees
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