Arachidic acid

C20H40O2CAS 506-30-9312.54 g/mol

OOH
Carboxylic acid

Properties

Molecular formula
C20H40O2
Molar mass
312.54 g/mol
Exact mass
312.3028 Da
Melting point
75.4 °C
Boiling point
328 °C
Critical temperature
565.9 °C (839.0 K)ChemSep
Critical pressure
12.6 barChemSep
Acentric factor
1.082ChemSep
Enthalpy of formation (gas)
−806.00 kJ/molChemSep
logP
7.11Crippen estimate
Polar surface area
37.3 Ų
H-bond donors / acceptors
1 / 1
Rotatable bonds
18

Hazards

Warning
Irritant (GHS07)

Aggregated from 285 ECHA notifications, via PubChem; a share says how many notifiers assign that statement.

Precautionary statements

P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, P501

Identifiers

CAS number
506-30-9
SMILES
CCCCCCCCCCCCCCCCCCCC(=O)O
InChIKey
VKOBVWXKNCXXDE-UHFFFAOYSA-N
InChI
InChI=1S/C20H40O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20(21)22/h2-19H2,1H3,(H,21,22)
Characterization data

Calculated from the structure, in the form journals print them.

¹H NMR
Predicted ¹H NMR (400 MHz, CDCl₃) δ 11.50 (br s, 1H), 2.38 (t, J = 7.0 Hz, 2H), 1.57 (quint, J = 7.0 Hz, 2H), 1.27 (m, J = 7.0 Hz, 2H), 1.27 (m, J = 7.0 Hz, 2H), 1.27 (m, J = 7.0 Hz, 2H), 1.27 (m, J = 7.0 Hz, 2H), 1.27 (m, J = 7.0 Hz, 2H), 1.27 (m, J = 7.0 Hz, 2H), 1.27 (m, J = 7.0 Hz, 2H), 1.27 (m, J = 7.0 Hz, 2H), 1.27 (m, J = 7.0 Hz, 2H), 1.27 (m, J = 7.0 Hz, 2H), 1.27 (m, J = 7.0 Hz, 2H), 1.27 (m, J = 7.0 Hz, 2H), 1.27 (m, J = 7.0 Hz, 2H), 1.27 (m, J = 7.0 Hz, 2H), 1.27 (m, J = 7.0 Hz, 2H), 1.27 (m, J = 7.0 Hz, 2H), 0.86 (t, J = 7.0 Hz, 3H).
¹³C NMR
Predicted ¹³C NMR (101 MHz, CDCl₃) δ 180.3, 34.1, 32.5, 30.3, 30.3, 30.3, 30.3, 30.3, 30.3, 30.3, 30.3, 30.3, 30.3, 30.3, 30.0, 30.0, 29.7, 25.1, 23.1, 14.0.
[M + H]+
[M + H]+ Calcd for C20H41O2 313.3101
[M + Na]+
[M + Na]+ Calcd for C20H40NaO2 335.2921
[M − H]−
[M − H]− Calcd for C20H39O2 311.2956
Elemental analysis
Anal. Calcd for C20H40O2: C, 76.86; H, 12.90.

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Names and synonyms

9 names
  • Eicosanoic acid
  • Arachic acid
  • n-Eicosanoic acid
  • Icosanoic acid
  • NSC 93983
  • n-Eicosanic acid
  • C20 Fatty acid
  • C 20
  • Peanut acid

Work with Arachidic acid

Similar compounds

Tanimoto similarity of circular fingerprints over the whole catalogue.

Same formula

Elsewhere