Chemical Properties of Homophthalic anhydride (CAS 703-59-3)

Homophthalic anhydride

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InChI Key
Molecular Weight1
Other Names
  • 1,3-Isochromandione
  • 1H-2-Benzopyran-1,3(4H)-dione
  • 3,4-2H-Isocoumarin-3-one
  • benzoglutaric anhydride

Physical Properties

Property Value Unit Source
Δf -147.26 kJ/mol Joback Calculated Property
Δfgas -324.45 kJ/mol Joback Calculated Property
Δfus 14.68 kJ/mol Joback Calculated Property
Δvap 51.96 kJ/mol Joback Calculated Property
logPoct/wat 0.93 Crippen Calculated Property
Pc 4345.39 kPa Joback Calculated Property
Tboil 615.25 K Joback Calculated Property
Tc 881.29 K Joback Calculated Property
Tfus 411.80 K Joback Calculated Property
Vc 0.42 m3/kg-mol Joback Calculated Property

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas 272.52 J/mol×K 615.25 Joback Calculated Property

Molecular Descriptors

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

Similar Compounds

3H-2-Benzopyran-3-one, 1,4-dihydro-. Benzoic acid, 2-ethyl, ethyl ester. Phthalic acid, 2-(4-bromophenyl)ethyl ethyl ester. Phthalic acid, 2-(3-bromophenyl)ethyl ethyl ester. Phthalic acid, di(2-(4-chlorophenyl)ethyl) ester. Phthalic acid, 2-(4-chlorophenyl)ethyl ethyl ester. Phthalic acid, 2-(4-bromophenyl)ethyl propyl ester. Phthalic acid, 2-(3-bromophenyl)ethyl propyl ester. Phthalic acid, 2-(4-bromophenyl)ethyl isobutyl ester. Phthalic acid, 2-(4-bromophenyl)ethyl butyl ester. Phthalic acid, di(2-(3-chlorophenyl)ethyl) ester. Phthalic acid, 2-(4-chlorophenyl)ethyl propyl ester. Phthalic acid, 2-(3-chlorophenyl)ethyl ethyl ester. Phthalic acid, 2-(3-bromophenyl)ethyl isobutyl ester. Phthalic acid, 2-(2-bromophenyl)ethyl ethyl ester.

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