Cinnamic acid, known chemically as 3-phenylprop-2-enoic acid, is a fascinating and versatile organic compound. With the molecular formula C9H8O2, it is a naturally occurring substance found in a variety of plants, including the bark of cinnamon trees, certain plants containing coumarin, and the essential oils of some fruits. While it can be obtained through natural extraction methods, chemical synthesis also provides a reliable and efficient means of production, ensuring availability for a wide range of industrial applications.

At room temperature, Cinnamic Acid typically presents as a white or occasionally pale yellow crystalline powder. This physical form makes it easy to handle and incorporate into various manufacturing processes. A key characteristic is its solubility profile: it is practically insoluble in water, but readily dissolves in common organic solvents such as ethanol and ether. This differential solubility is important for its use in diverse formulations. Furthermore, Cinnamic Acid exhibits good thermal and photostability, meaning it is resistant to degradation under normal conditions of heat and light exposure, which is crucial for maintaining product integrity in finished goods.

Chemically, Cinnamic Acid is defined by the presence of both a carbon-carbon double bond and a carboxyl functional group within its molecular structure. This combination of functional groups imparts significant reactivity. The double bond can undergo hydrogenation, for instance, leading to the formation of phenylacetic acid. The carboxyl group allows for esterification reactions, producing cinnamate esters, which are highly valued, particularly in the fragrance industry for their pleasant aromas. Reactions with amines to form amides are also possible, opening up further avenues for chemical modification and application development.

The utility of Cinnamic Acid spans multiple industries:

Food Industry: Due to its distinctive and pleasant aroma, Cinnamic Acid and its ester derivatives are frequently employed as flavoring agents. They contribute unique taste profiles to various food products, including confections, baked goods, and beverages. Beyond flavoring, research indicates that Cinnamic Acid possesses notable antimicrobial properties. This makes it effective in inhibiting the growth of molds and other spoilage microorganisms, thus serving a valuable function as a food preservative, extending shelf life and maintaining food safety.

Pharmaceutical Field: Cinnamic Acid is gaining recognition in the pharmaceutical sector for its potential pharmacological effects. Studies have demonstrated antioxidant, anti-inflammatory, antibacterial, and antiviral activities. Furthermore, it shows promise in exhibiting protective effects on the cardiovascular system and is being investigated for potential anticancer properties. Crucially, Cinnamic Acid serves as a vital pharmaceutical intermediate, acting as a key building block in the synthesis of certain medications, including components used in the treatment of conditions like diabetes.

Cosmetics and Personal Care Products: Cinnamic Acid derivatives are effective UV absorbers, particularly in the UV-B range. When incorporated into sunscreens, they help protect the skin from the damaging effects of ultraviolet radiation. Owing to its characteristic pleasant scent, Cinnamic Acid and its various ester derivatives are widely used as fragrance components in perfumes, colognes, skincare creams and lotions, soaps, and other personal care items, contributing to their olfactory appeal.

Ensuring the quality and purity of Cinnamic Acid is paramount for its effective and safe use across these diverse applications. Specifications typically include a minimum purity level, often 99% minimum, measured by techniques such as HPLC or GC. Other critical parameters monitored include melting point, which should be 130°C minimum for high-purity material, loss on drying to ensure minimal residual moisture, and residue on ignition to assess inorganic impurities. Heavy metal content, such as Arsenic and Lead, must strictly adhere to low maximum limits (e.g., 0.5mg/kg max for Arsenic, 0.1mg/kg max for Lead) to meet safety standards, especially for food, pharmaceutical, and cosmetic grades.

Packaging solutions for Cinnamic Acid are designed to protect the product's integrity and facilitate handling. Standard packaging often involves 25kg kraft paper bags, which are durable and suitable for storage and transport. Depending on customer requirements and scale of purchase, various logistics services, including full container load (FCL) or less than container load (LCL) shipping, can be arranged to destinations worldwide.

Accessing high-quality Cinnamic Acid requires partnering with a reputable source. When seeking this valuable compound, it is essential to connect with a reliable cinnamic acid manufacturer or cinnamic acid supplier. Factors influencing the final cinnamic acid price include purity levels, production volume, and packaging requirements. Companies looking to buy cinnamic acid in bulk quantities should inquire directly to ensure specifications are met. The process to purchase cinnamic acid involves verifying certifications and quality documentation to guarantee that the product meets the stringent requirements for its intended application, whether in food, pharma, or cosmetics, ensuring both efficacy and safety.