Chemical Properties of 2-Methylbutanoic anhydride (CAS 1468-39-9)

2-Methylbutanoic anhydride

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InChI Key
Molecular Weight1
Other Names
  • Butanoic acid, 3-methyl-, anhydride
  • Isovaleric anhydride
  • iso-Pentanoic anhydride

Physical Properties

Property Value Unit Source
Δf -334.40 kJ/mol Joback Calculated Property
Δfgas -617.67 kJ/mol Joback Calculated Property
Δfus 19.00 kJ/mol Joback Calculated Property
Δvap 52.98 kJ/mol Joback Calculated Property
logPoct/wat 2.15 Crippen Calculated Property
Pc 2372.59 kPa Joback Calculated Property
Tboil 557.48 K Joback Calculated Property
Tc 745.50 K Joback Calculated Property
Tfus 294.55 K Joback Calculated Property
Vc 0.61 m3/kg-mol Joback Calculated Property

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas 390.89 J/mol×K 557.48 Joback Calculated Property
η 0.00 Pa×s 557.48 Joback Calculated Property

Molecular Descriptors

Joback and Reid Groups
>CH- 2
-O- (nonring) 1
-CH2- 2
>C=O (nonring) 2
-CH3 4

Similar Compounds

Butanoic acid, 3-methyl-, 3-methylbutyl ester. Butanoic acid, 3-methyl-, butyl ester. Butanoic acid, 3-methylbutyl ester. Propyl isovalerate. Butanoic acid, anhydride. N-amyl isovalerate. Butanoic acid, 3-methyl-, ethyl ester. Isoamyl propionate. Butanoic acid, 3-methyl-, hexyl ester. Hexyl isovalerate. 4-Methylpentyl 3-methylbutanoate. Iso-butyl isovalerate. Pentanoic acid, 3-methylbutyl ester. Heptyl isopentanoate. Isovaleric acid, pentadecyl ester.

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