Angelic acid

  • (Z )-2 -methyl-2 -butenoic acid
  • 2- Methylisocrotonsäure

Pale yellow solid

Fixed

1.01 g · cm -3

45-46 ° C

86-88 ° C (at 17 hPa)

1.4434 ( 47 ° C)

Template: Infobox chemical / molecular formula search available

Angelic acid ( (Z )-2 -methyl-2 -butenoic acid ) is an unsaturated monocarboxylic acid. It occurs in the Real angelica (Angelica archangelica ), from whose roots it was first isolated in 1842 by Ludwig Andreas Buchner. Angelic acid is also found in other umbelliferous plants and other plant species. Also in defensive secretions of certain beetles Angelika acid could be detected.

The substance is volatile, tastes sour and has a pungent odor. At room temperature, it exists as a crystalline solid. The crystal structure is monoclinic prismatic.

The isomeric (E )-2- methyl-2- butenoic acid, tiglic acid is also referred to.

Angelic acid was formerly used as a sedative use.

CAS registry number PubChem Digital Object Identifier CRC Handbook of Chemistry and Physics
11921
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