5044 Cinnamaldehyde Cinnamaldehyde is the aldehyde that gives cinnamon its flavor and odor. Cinnamaldehyde occurs naturally in the bark of cinnamon trees and other species of the genus Cinnamomum like camphor and cassia. These trees are the natural source of cinnamon, and the essential oil of cinnamon bark is about 90% cinnamaldehyde. Cinnamaldehyde is also used as a fungicide. Proven effective on over 40 different crops, cinnamaldehyde is typically applied to the root systems of plants. Its low toxicity and well-known properties make it ideal for agriculture. To a lesser extent, cinnamaldehyde is an effective insecticide, and its scent is also known to repel animals like cats and dogs. Cinnamaldehyde is also known as a corrosion inhibitor for steel and other ferrous alloys in corrosive fluids. It can be used in combination with additional components such as dispersing agents, solvents and other surfactants. Concentrated cinnamaldehyde is a skin irritant, and the chemical is toxic in large doses, but no agencies suspect the compound is a carcinogen or poses a long-term health hazard. Most cinnamaldehyde is excreted in urine as cinnamic acid, an oxidized form of cinnamaldehyde. 104-55-2 637511 C9H8O -7.5 °C 248 C (478 F; 521 K) 1.42 mg/mL at 25 °C Inhalation; dermal; ingestion Cinnamaldehyde is an allergen. The physiologic effect of cinnamaldehyde is by means of increased histamine release and cell-mediated immunity. Cinnamaldehyde is converted to cinnamoyl-CoA by cinnamoyl-CoA reductase. LD50: 3400 mg/kg (rat, oral) No indication of carcinogenicity to humans (not listed by IARC). Allergic reaction. The specific symptoms that can result from cinnamic aldehyde allergy can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches. (L2140) 2014-10-14T21:19:45Z 2014-12-24T20:27:01Z http://en.wikipedia.org/wiki/Cinnamaldehyde C00903 16731 CINNAMALDEHYDE C012843 true [H]\C(C=O)=C(\[H])C1=CC=CC=C1 C9H8O InChI=1S/C9H8O/c10-8-4-7-9-5-2-1-3-6-9/h1-8H/b7-4+ InChIKey=KJPRLNWUNMBNBZ-QPJJXVBHSA-N 132.1592 132.057514878 Exogenous Liquid 1.9 HMDB03441 553117 Liu, Xue-mei. Synthesis of cinnamaldehyde. Qufu Shifan Daxue Xuebao, Ziran Kexueban (2005), 31(2), 96-98.