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748684

Sigma-Aldrich

Phosgene solution

15 wt. % in toluene

Synonym(s):

Carbon oxychloride, Carbonyl chloride, Phosgen

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About This Item

Linear Formula:
COCl2
CAS Number:
75-44-5
Molecular Weight:
98.92
Beilstein:
1098367
MDL number:
MFCD00036119
UNSPSC Code:
12352101
PubChem Substance ID:
329765925
NACRES:
NA.22

form

liquid

Quality Level

200

concentration

15 wt. % in toluene

density

0.924 g/mL at 25 °C

storage temp.

2-8°C

SMILES string

ClC(Cl)=O

InChI

1S/CCl2O/c2-1(3)4

InChI key

YGYAWVDWMABLBF-UHFFFAOYSA-N

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General description

Phosgene is used as a reagent in organic synthesis for various reactions such as carbonylation reaction and synthesis of isocyanates. Phosgene is formed during the free radical induced degradation of chlorinated hydrocarbons. Determination of phosgene in air samples using thermal desorption (TD) followed by gas chromatography-mass spectrometry (GC-MS) has been reported.

Application

Phosgene solution (15 wt. % in toluene) has been used to synthesize the following peptide monomers:
  • γ-(4-propargyloxybenzyl)-L-glutamic acid N-carboxyanhydride (POB-L-Glu-NCA)
  • γ-(4,5-dimethoxy-2-nitrobenzyl)-L-glutamate N-carboxyanhydride (DMNB-L-Glu-NCA)
  • γ-(4,5-dimethoxy-2-nitrobenzyl)-D-glutamate N-carboxyanhydride (DMNB-D-Glu-NCA)
  • 2-nitrobenzyl(4-vinylphenyl)carbamate

Phosgene solution may be used in the synthesis of:
  • sulfonyl chlorides
  • Fmoc (Fluorenylmethyloxycarbonyl chloride)-taurylsulfonyl chloride
  • O-benzyl-L-serine carboxyanhydrides

Packaging

The 25 mL Sure/Seal™ bottle is recommended as a single-use bottle. Repeated punctures will likely result in decreased performance of product.

Legal Information

Sure/Seal is a trademark of Sigma-Aldrich Co. LLC

Signal Word

Danger

Hazard Classifications

Acute Tox. 1 Inhalation - Aquatic Chronic 3 - Asp. Tox. 1 - Eye Dam. 1 - Flam. Liq. 2 - Repr. 2 - Skin Corr. 1B - STOT RE 2 - STOT SE 3

Target Organs

Central nervous system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

39.2 °F - closed cup

Flash Point(C)

4 °C - closed cup

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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