I. What is Cinnamaldehyde?
Cinnamaldehyde, also known as cinnamon aldehyde, is an aromatic aldehyde compound naturally found in plants such as cinnamon. It is the source of cinnamon's distinctive aroma. Its chemical formula is usually written as:
C9H8O (CAS No.: 104-55-2, molecular weight approximately 132.16, cis isomer CAS No.: 14371-10-9)
It is a colorless to pale yellow oily liquid at room temperature, with a strong, sweet and spicy cinnamon aroma. Its density is approximately 1.05 g/cm³, melting point approximately -7.5℃, boiling point approximately 246~253℃ (decomposing simultaneously), flash point approximately 71℃, and refractive index approximately 1.618~1.623. Cinnamaldehyde is slightly soluble in water, soluble in most organic solvents such as ethanol and ether, and is easily oxidized by air to cinnamic acid. It is the main component of cinnamon oil and Ceylon cinnamon oil produced in China, accounting for approximately 55%~85%.
From a molecular structure perspective, cinnamaldehyde is composed of a benzene ring, double bonds, and an aldehyde group (-CHO), belonging to the α,β-unsaturated aromatic aldehydes. The aldehyde group imparts its cinnamon aroma and chemical activity, while the double bond allows it to participate in various addition reactions. In non-food sectors, its strong antibacterial activity is used in agriculture, its aroma is used in daily chemical fragrances, and its reactivity makes it an intermediate in organic synthesis. This multi-functional combination of "aroma + antibacterial + activity" forms the structural basis for its widespread application in the daily chemical and agricultural fields.
Chemically, cinnamaldehyde is easily oxidized to cinnamic acid in the air. This oxidation is accelerated by light and high temperatures, so it must be stored in a sealed, light-protected container. It is irritating to the skin and eyes, and high concentrations may cause allergies. It should be stored in a sealed, light-protected, and fire-proof container.
Non-food grade cinnamaldehyde refers to products used in fields other than food, mainly including daily chemical grade and reagent grade specifications. Compared with food grade, non-food grade products pay more attention to the following indicators:
Color and aroma
It should be a pale yellow, oily liquid with a pure and strong cinnamon aroma, as aroma is a core indicator for the application of fragrances in daily chemical products.
Relative density and refractive index
Density (approximately 1.05) and refractive index are common indicators for judging purity and quality, and must meet the specified range.
II. What are the uses of Cinnamaldehyde?
1. Daily-use fragrances and perfumes (daily chemical grade, core application)
Cinnamaldehyde is a classic fragrance ingredient in everyday fragrances, imparting a warm, sweet and spicy cinnamon scent to perfumes, soaps, shower gels, detergents, air fresheners and scented candles. It is an important raw material in the formulation of daily chemical perfume.
2. Food flavorings ( food grade, core application)
Cinnamaldehyde is one of the most important food flavorings. It has been evaluated by FEMA GRAS and listed as a legal food flavoring in GB 2760. It is widely used to flavor carbonated beverages such as cola, candies, chewing gum, ice cream , alcoholic beverages, baked goods and compound seasonings, giving food a unique cinnamon-sweet flavor.
3. Agricultural antibacterial and insecticidal properties (agricultural grade)
Cinnamaldehyde is an important active ingredient in plant-derived pesticides . It has an inhibitory effect on a variety of plant pathogens and can be used for crop disease control, post-harvest preservation of fruits and vegetables, and repelling of stored pests. It is an important natural antibacterial and insecticidal option in green agriculture.
4. Scientific research and laboratory applications (reagent grade)
Cinnamaldehyde is a commonly used aromatic aldehyde reagent in the laboratory. It can be used as an organic synthesis intermediate to prepare cinnamyl alcohol, cinnamic acid, phenylpropionic acid and other compounds. It is also an important object of research in natural product chemistry and fragrance chemistry.
5. Feed additives
Cinnamaldehyde is used as a feed additive to improve feed palatability and play a natural antibacterial effect, and maintain the intestinal health of animals, which is used in livestock and poultry farming
6. Food preservation and freshness maintenance (natural antibacterial agent)
Cinnamaldehyde has good broad-spectrum antibacterial effects, can be used as a natural food preservative. It can be used to preserve mushrooms, fruit, meat products and fish fillets by fumigation, film formation and emulsion treatment to delay spoilage and extend shelf life. It is a hot topic in the study and application of food preservation.
7. Foods for oral care
The dual effect of antibacterial and deodorising of cinnamaldehyde in the oral cavity. It is used in oral care products such as cinnamon flavoured chewing gum and breath fresheners to help freshen breath and inhibit oral bacteria.
8. Seasonings and compound seasonings
Cinnamaldehyde is also used as a component in compound seasonings, braising spices and cooking flavourings, providing a classic cinnamon flavour to Chinese braised dishes, Western sauces and more.
9. Other Applications
It is used in teaching experiments, in the custom synthesis of fine chemicals, and in corrosion and mildew prevention, and the range continues to extend.
Summarize
Cinnamaldehyde Cinnamaldehyde is an oily liquid, pale yellow and aromatic aldehyde. This is what gives cinnamon its distinct smell and is found naturally in cinnamon oil (content 55% - 85 %). The scent is pleasant and it has a broad spectrum antibacterial activity. In daily life we find it in various forms, such as cola drinks, cinnamon flavoured pastries, candies, chewing gum, toothpaste, oral hygiene products, braised cinnamon, and perfumes and fragrances. Chemical and reagent grade cinnamaldehyde is widely used in non-food applications such as daily fragrances and perfumes, agricultural antibacterial and insecticidal applications, scientific research and synthesis of organic compounds, and feed additives. It is a natural active compound with multiple values such as aroma, health benefits and agricultural application.