Chemical Properties of gentisic acid (CAS 490-79-9)

gentisic acid

Download as PDF file Download as Excel file Download as 2D mole file Predict properties

InChI Key
Molecular Weight1
Other Names
  • 2,5-Dhba
  • 2,5-Dihydroxybenzoic acid
  • 2,5-Dioxybenzoic acid
  • 3,6-Dihydroxybenzoic acid
  • 5-Hydroxysalicylic acid
  • Benzoic acid, 2,5-dihydroxy-
  • Gensigen
  • Gensigon
  • Gentisate
  • Gentisinic acid
  • Hydroquinonecarboxylic acid
  • Kyselina 2,5-dihydroxybenzoova
  • Kyselina gentisinova
  • NSC 27224
  • Salicylic acid, 5-hydroxy-

Physical Properties

Property Value Unit Source
PAff 531.60 ± 1.30 kJ/mol NIST
Δf -454.51 kJ/mol Joback Calculated Property
Δfgas -570.71 kJ/mol Joback Calculated Property
Δfus 25.18 kJ/mol Joback Calculated Property
Δsub 130.40 ± 1.30 kJ/mol NIST
Δvap 82.91 kJ/mol Joback Calculated Property
logPoct/wat 0.796 Crippen Calculated Property
Pc 8175.04 kPa Joback Calculated Property
Tboil 693.53 K Joback Calculated Property
Tc 922.45 K Joback Calculated Property
Tfus 529.26 K Joback Calculated Property
Vc 0.277 m3/kg-mol Joback Calculated Property

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas 267.80 J/mol×K 693.53 Joback Calculated Property
η 0.0000008 Pa×s 693.53 Joback Calculated Property
ΔfusH 20.80 kJ/mol 476.2 NIST
ΔsubH 117.90 ± 1.40 kJ/mol 370.5 NIST
ΔsubH 128.10 ± 1.40 kJ/mol 380.5 NIST

Molecular Descriptors

Joback and Reid Groups
=C< (ring) 3
-OH (alcohol) 1
>C=O (nonring) 1
-OH (phenol) 2
=CH- (ring) 3

Similar Compounds

Benzoic acid, 2,3-dihydroxy-. Benzoic acid, 2,5-dihydroxy-, methyl ester. Benzoic acid, 2-hydroxy-. 2-Hydroxy-4-methylbenzoic acid. Benzoic acid, 3-hydroxy-. Benzoic acid, 2,5-dimethoxy-. 2,3-Dihydroxyterephthalic acid. Benzoic acid, 2,6-dihydroxy-. 3-Hydroxy-4-methylbenzoic acid. 2,3,4-Trihydroxybenzoic acid. 3,5-dihydroxybenzoic acid. 2,4-Dihydroxybenzoic acid. Methyl 2-hydroxy-5-methoxybenzoate. Benzoic acid, 2,3-dihydroxy-, methyl ester. 1,4-Benzenedicarboxylic acid, 2-hydroxy-, 1,4-dimethyl ester.

Find more compounds similar to gentisic acid.

Note: Cheméo is only indexing the data, follow the source links to retrieve the latest data. The source is also providing more information like the publication year, authors and more. Take the time to validate and double check the source of the data.