Cinnamic acid
You don't need to be Editor-In-Chief to add or edit content to WikiDoc. You can begin to add to or edit text on this WikiDoc page by clicking on the edit button at the top of this page. Next enter or edit the information that you would like to appear here. Once you are done editing, scroll down and click the Save page button at the bottom of the page.
| Cinnamic acid | |
|---|---|
| |
| IUPAC name | (E)-3-phenyl-2-propenoic acid |
| Other names | Cinnamic Acid, trans-Cinnamic Acid |
| Identifiers | |
| CAS number | |
| Properties | |
| Molecular formula | C6H5CHCHCOOH |
| Molar mass | 148.17 g/mol |
| Appearance | monoclinic crystals |
| Density | 1.2475 g/cm3 |
| Melting point |
133 °C |
| Boiling point |
300 °C |
| Solubility in water | 0.4 g/L |
| Acidity (pKa) | 4.44 |
| Hazards | |
| EU classification | Irritant (Xi) |
| R-phrases | R36 |
| S-phrases | S25 |
| Flash point | >110 °C |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references | |
Cinnamic acid has the formula C6H5CHCHCOOH and is a white crystalline acid, which is slightly soluble in water. It has a melting point of 133°C and a boiling point of 300°C.
It is obtained from oil of cinnamon, or from balsams such as storax. It is also found in shea butter and is the best indication of its environmental history and post-extraction conditions. It can also be made synthetically.
Cinnamic acid is used in flavours, synthetic indigo, and certain pharmaceuticals, though its primary use is in the manufacturing of the methyl, ethyl, and benzyl esters for the perfume industry. Cinnamic acid has a "honey, floral odor" (Merck Index); it and its more volatile ethyl ester (ethyl cinnamate) are flavour components in the essential oil of cinnamon, in which related cinnamaldehyde is the major constituent. Cinnamic acid is also part of the biosynthetic shikimate and phenylpropanoid pathways. Its biosynthesis is performed by action of the enzyme phenylalanine ammonia lysase (PAL) on phenylalanine.
Cinnamic acid is soluble in diethyl ether, insoluble in hexane.
References
- Flavornet.org
- CRC Handbook
- Chemfinder
- Katzer, G. Gernot Katzer's Spice Pages, accessed August 17, 2006.
- Budavari, Susan (Ed.) The Merck Index, 13 Ed. Merck & Co., Inc, Whitehouse Station, NJ, USA, 2001.
Template:PhenylpropanoidsTemplate:Aromatic-stub
bg:Канелена киселина de:Zimtsäurelv:Kanēļskābe lt:Cinamono rūgštis nl:Kaneelzuur
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
