Merck
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D5758

Sigma-Aldrich

Diethyl pyrocarbonate

96% (NT)

Synonym(s):
DEP, DEPC, Diethyl dicarbonate, Diethyl oxydiformate, Ethoxyformic acid anhydride
Linear Formula:
O(COOC2H5)2
CAS Number:
Molecular Weight:
162.14
Beilstein:
637031
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.77

biological source

synthetic (microbial fermentation/ cell culture)

Quality Level

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 (DEPC) is a chemical use to inactivate RNase enzymes and is sensitive to moisture and pH. It decomposes at 155°C, to ethanol and carbon dioxide in aqueous solution. DEPC is also sensitive to ammonia, which causes decomposition to urethane, a possible carcinogen.

Application

Diethyl pyrocarbonate has been used in PCR reaction for treating deionized water, which reduces the risk of RNA being degraded by RNases. It is also used for Dot blot hybridization, to dilute total RNA isolated from different micro-organisms.
Modification reagent for His and Tyr residues in proteins. Robust probe for structural disruptions in dsDNA, reacting with fully or partially unstacked bases.

Packaging

5, 25, 50, 100 mL in glass bottle

Biochem/physiol Actions

DEPC is a potent nuclease inhibitor.0.1% solution of DEPC is used to inactive RNase.
It inhibits the ryanodine binding to ryanodine/Ca2+ receptor channels in skeletal muscle in a dose and time dependent manner and increases the Ca2+ permeability of SR vesicles.
Inactivates RNase in solution at about 0.1% (v/v), thus protecting RNA against degradation.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

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

Certificate of Analysis

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Certificate of Origin

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