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Diketene

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Diketene / CAS : 674-82-8

Appearance colorless liquid UN 2521
HS 29322090 DG Class 6.1
Synonyms Acetyl Ketene; Acetylketene; Diketene(Dk); Ethenone,Dimer; 4-Methylene-2-Oxetanone; Dikitene; 2-Oxetanone, 4-Methylene-; But-1-Ene-1,3-Dione; Diketene Dimer; Ketenedimere; Diketen; 4-Methyleneoxetan-2-One; Ketene Dimer
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Overview

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Properties

Summary

Formula
C4H4O2
Molecular Mass
84.07340
Exact Mass
84.02110
PSA
26.30000
Logp
0.44700
IUPAC
4-methylideneoxetan-2-one
SMILES
C=C1CC(=O)O1

Attribute classification

Matter Classification
organic
Category
API & Intermediate > Pharmaceutical Intermediates
Auxiliary > Other Auxiliary Agent
Agrochemicals > Pesticide Intermediates
Dyestuffs and Pigments > Intermediates

Chemical and Physical Properties

Melting Point
-7.5°C
Density
1.09 g/mL 
Boiling Point
69-70 °C
Flash Point
95 °F
Appearance
colorless liquid
Acidity and Basicity
neutral

Export information

HS Code
29322090
Export Rebate
13%
UN No.
2521
DG-Class
6.1
Risk Code
R10-20-40-36/37/38
Safety Label
Xn

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