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Dimethyl dicarbonate information


Dimethyl dicarbonate
Skeletal formula of dimethyl dicarbonate
Names
Preferred IUPAC name
Dimethyl dicarbonate
Other names
DMDC; Dicarbonic acid dimethyl ester; Dimethyl pyrocarbonate; Velcorin
Identifiers
CAS Number
  • 4525-33-1 checkY
3D model (JSmol)
  • Interactive image
  • Interactive image
ChEBI
  • CHEBI:173546
ChemSpider
  • 2976 checkY
ECHA InfoCard 100.022.601 Edit this at Wikidata
EC Number
  • 224-859-8
E number E242 (preservatives)
PubChem CID
  • 3086
UNII
  • 1AY9229ZMG checkY
CompTox Dashboard (EPA)
  • DTXSID2052108 Edit this at Wikidata
InChI
  • InChI=1S/C4H6O5/c1-7-3(5)9-4(6)8-2/h1-2H3 checkY
    Key: GZDFHIJNHHMENY-UHFFFAOYSA-N checkY
  • InChI=1/C4H6O5/c1-7-3(5)9-4(6)8-2/h1-2H3
    Key: GZDFHIJNHHMENY-UHFFFAOYAQ
SMILES
  • O=C(OC(=O)OC)OC
  • O=C(OC)OC(=O)OC
Properties
Chemical formula
C4H6O5
Molar mass 134.087 g·mol−1
Appearance Colorless liquid
Density 1.25 g/mL
Melting point 16 to 18 °C (61 to 64 °F; 289 to 291 K)
Boiling point 172 °C (342 °F; 445 K)
Viscosity 2.1 Pa·s (20 °C)
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
Toxic
GHS labelling:
Pictograms
GHS02: FlammableGHS05: CorrosiveGHS06: ToxicGHS07: Exclamation mark
Signal word
Danger
Hazard statements
H226, H302, H312, H314, H330
Precautionary statements
P210, P233, P240, P241, P242, P243, P260, P264, P270, P271, P280, P284, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P320, P321, P322, P330, P363, P370+P378, P403+P233, P403+P235, P405, P501
Related compounds
Related compounds
Di-tert-butyl dicarbonate
diethylpyrocarbonate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Dimethyl dicarbonate (DMDC) is a colorless liquid with a pungent odor at high concentration at room temperature. It is primarily used as a beverage preservative, processing aid, or sterilant (INS No. 242) being highly active against typical beverage spoiling microorganisms like yeast, bacteria, or mould.[1]

  1. ^ Uhr, Hermann; Mielke, Burkhard; Exner, Otto; Payne, Ken R.; Hill, Edward (2013). "Biocides". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. pp. 1–26. doi:10.1002/14356007.a16_563.pub2. ISBN 978-3527306732.

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