Angelic acid

Angelic acid

Chembox new
Name = Angelic acid
ImageFile = Angelic acid.png ImageName = Chemical structure of angelic acid
IUPACName = (Z)-2-methylbut-2-enoic acid
OtherNames =
Section1 = Chembox Identifiers
CASNo = 565-63-9
PubChem = 643915
SMILES = CC=C(C)C(=O)O
Section2 = Chembox Properties
C=5|H=8|O=2
Density =
MeltingPt = 45.5°C
BoilingPt = 185°C

Angelic acid is a monocarboxylic unsaturated organic acid. It is found in garden angelica ("Angelica archangelica"), Umbelliferae, and many other plants. It was also isolated from the defensive secretion of certain carabid beetles.

Properties and uses

Angelic acid has a double bond between the second and third carbons of the chain. Together with tiglic acid form a pair of "cis-trans" isomers. Angelic acid is a volatile body, of biting acid taste and pungent sour odour. It crystallizes in colorless monoclinic prisms. Angelic acid was formerly used therapeutically as a sedative.

Name and discovery

Angelic acid gets its name from the plant garden angelica ("Angelica archangelica") from whose roots it was first obtained in 1842 by L. A. Buchner. [Buchner, L. A. (1842). "Ueber eine eigenthümliche flüchtige Säure aus der Angelicawurzel: Eine briefliche Mittheilung". "Justus Liebigs Ann. Chem." 42: 226–233. doi|10.1002/jlac.18420420211.]

References


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Look at other dictionaries:

  • Angelic acid — Angelic An*gel ic, a. [From {Angelica}.] (Chem.) Of or derived from angelica; as, angelic acid; angelic ether. [1913 Webster] {Angelic acid}, an acid obtained from angelica and some other plants. [1913 Webster] …   The Collaborative International Dictionary of English

  • angelic acid — angelo rūgštis statusas T sritis chemija formulė CH₃CH=C(CH₃)COOH atitikmenys: angl. angelic acid rus. ангеликовая кислота ryšiai: sinonimas – (Z) 2 metil 2 buteno rūgštis …   Chemijos terminų aiškinamasis žodynas

  • angelic acid — an·gel·ic acid (.)an .jel ik n an unsaturated crystalline acid C5H8O2 that occurs as an ester esp. in angelica root and together with tiglic acid in oil from the common European chamomile (Anthemis nobilis) …   Medical dictionary

  • angelic acid — (ˈ)an|jelik noun Etymology: New Latin Angelica : an unsaturated crystalline acid CH3CH . C(CH3)COOH obtained from angelica and some other plants; cis α methyl crotonic acid compare tiglic acid …   Useful english dictionary

  • angelic acid — noun An unsaturated organic acid, CH CH=C(CH COOH), found in angelica and having pharmacological uses; the trans form is tiglic acid …   Wiktionary

  • Angelic — An*gel ic, a. [From {Angelica}.] (Chem.) Of or derived from angelica; as, angelic acid; angelic ether. [1913 Webster] {Angelic acid}, an acid obtained from angelica and some other plants. [1913 Webster] …   The Collaborative International Dictionary of English

  • Angelic — The term Angelic may refer to: *Angel, a supernatural being *Angelic acid, an organic compound * Angelic , a UK dance band featuring Darren Tate, Judge Jules and Jules s wife …   Wikipedia

  • angelic — adjective /ænˈdʒɛlɪk/ a) Belonging to, or proceeding from, angels; resembling, characteristic of, or partaking of the nature of, an angel. <! material copied from Websters Revised Unabridged Dictionary (1913) an angelic ester b) Of or… …   Wiktionary

  • carboxylic acid — Chem. any organic acid containing one or more carboxyl groups. [1900 05; CARBOXYL + IC] * * * Any organic compound with the general chemical formula ―COOH in which a carbon (C) atom is bonded to an oxygen (O) atom by a double bond to make a… …   Universalium

  • Tiglic acid — IUP …   Wikipedia

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