1.0 2010-04-08 22:04:42 UTC 2019-11-26 02:55:23 UTC FDB000775 Angelic acid Constituent of Angelica archangelica (angelica) 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.; 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. (2Z)-2-methylbut-2-enoic acid (Z)-2-Methyl-2-butenoic acid (Z)-2-Methylcrotonate (Z)-2-methylcrotonic acid 2-butenoic acid, 2-methyl-, (2Z)- 2-Butenoic acid, 2-methyl-, (Z)- 2-Methyl-(2Z)-2-butenoic acid 2-Methyl-(Z)-2-butenoic acid 2-Methyl-(Z)-crotonic acid 2-Methyl-2-butenoic acid, cis 2-Methyl-2Z-butenoate 2-Methyl-2Z-butenoic acid 2-Methylisocrotonate 2-Methylisocrotonic acid a-Methylisocrotonate a-Methylisocrotonic acid Acide angelique Acido angelico Alpha-methyl isocrotonic acid alpha-Methylisocrotonate alpha-Methylisocrotonic acid Angelate Angelic acid Angelicasaeure Angelikasaeure cis-2-Dimethylcrotonate cis-2-Dimethylcrotonic acid cis-2-Methyl-2-butenoate cis-2-Methyl-2-butenoic acid cis-2,3-Dimethylacrylate cis-2,3-Dimethylacrylic acid Crotonic acid, 2-methyl-, (Z)- Crotonic acid, 2-methyl-, (Z)- (8CI) Z-2-Methyl-2-butenoate Z-2-Methyl-2-butenoic acid Z-2-Methylcrotonate Z-2-Methylcrotonic acid α-methylisocrotonate α-methylisocrotonic acid C5H8O2 100.1158 100.0524295 (2Z)-2-methylbut-2-enoic acid angelic acid 565-63-9 C\C=C(\C)C(O)=O InChI=1S/C5H8O2/c1-3-4(2)5(6)7/h3H,1-2H3,(H,6,7)/b4-3- UIERETOOQGIECD-ARJAWSKDSA-N belongs to the class of organic compounds known as methyl-branched fatty acids. These are fatty acids with an acyl chain that has a methyl branch. Usually, they are saturated and contain only one or more methyl group. However, branches other than methyl may be present. Methyl-branched fatty acids Organic compounds Lipids and lipid-like molecules Fatty Acyls Fatty acids and conjugates Aliphatic acyclic compounds Carbonyl compounds Carboxylic acids Hydrocarbon derivatives Monocarboxylic acids and derivatives Organic oxides Unsaturated fatty acids Aliphatic acyclic compound Carbonyl group Carboxylic acid Carboxylic acid derivative Hydrocarbon derivative Methyl-branched fatty acid Monocarboxylic acid or derivatives Organic oxide Organic oxygen compound Organooxygen compound Unsaturated fatty acid 2-methylbut-2-enoic acid Branched fatty acids melting_point Mp 45° logp 1.32 ChemAxon pka_strongest_acidic 4.97 ChemAxon iupac (2Z)-2-methylbut-2-enoic acid ChemAxon average_mass 100.1158 ChemAxon mono_mass 100.0524295 ChemAxon smiles C\C=C(\C)C(O)=O ChemAxon formula C5H8O2 ChemAxon inchi InChI=1S/C5H8O2/c1-3-4(2)5(6)7/h3H,1-2H3,(H,6,7)/b4-3- ChemAxon inchikey UIERETOOQGIECD-ARJAWSKDSA-N ChemAxon polar_surface_area 37.3 ChemAxon refractivity 27.32 ChemAxon polarizability 10.35 ChemAxon rotatable_bond_count 1 ChemAxon acceptor_count 2 ChemAxon donor_count 1 ChemAxon physiological_charge -1 ChemAxon formal_charge 0 ChemAxon Specdb::CMs 20445 Specdb::CMs 41469 Specdb::CMs 133821 Specdb::CMs 141555 Specdb::MsMs 101955 Specdb::MsMs 101956 Specdb::MsMs 101957 Specdb::MsMs 167661 Specdb::MsMs 167662 Specdb::MsMs 167663 Specdb::MsMs 2659783 Specdb::MsMs 2659784 Specdb::MsMs 2659785 Specdb::MsMs 3019689 Specdb::MsMs 3019690 Specdb::MsMs 3019691 HMDB29608 36431 #<Reference:0x000055ce32c9a5d0> Black tea Type 1 Blackberry Type 1 specific Rubus Celery stalks Type 1 specific Apium graveolens var. dulce 117781 Evergreen blackberry Type 1 specific Rubus laciniatus Fats and oils Unknown generic Giant butterbur Type 1 specific Petasites japonicus 186965 Green tea Type 1 Green vegetables Unknown generic Herbal tea Type 1 Herbs and Spices Unknown generic Lovage Type 1 specific Levisticum officinale 48042 Red tea Type 1 Tea Type 1 specific Camellia sinensis 4442 Wild celery Type 1 specific Apium graveolens 4045 spicy Sedative 1311 A central nervous system depressant used to induce drowsiness or sleep or to reduce psychological excitement or anxiety.