3-Hydroxycinnamic acid, also known as m-coumaric acid or meta-hydroxycinnamic acid, is an organic compound belonging to the hydroxycinnamic acid family. It is one of the isomers of hydroxycinnamic acid, distinguished by the position of the hydroxyl group (-OH) on the benzene ring.
Chemical Structure and Properties
Chemical Formula: C9H8O3
Molecular Weight: 164.16 g/mol
Structure: The chemical structure consists of a benzene ring with a hydroxyl group at the meta position (3rd position) relative to the propenoic acid side chain (-CH=CH-COOH).
Appearance: It typically appears as a white or off-white crystalline powder.
Solubility: Soluble in organic solvents such as ethanol and methanol; slightly soluble in water.
Stability: Stable under normal conditions but should be stored in a cool, dry place, protected from light and moisture to prevent degradation.
Applications of 3-Hydroxycinnamic Acid
1. Antioxidant
2. Pharmaceuticals and Nutraceuticals
3. Precursor in Organic Synthesis
4. Research and Development
Safety and Handling
Toxicity: 3-Hydroxycinnamic acid is generally considered to have low toxicity, but care should still be taken when handling it to avoid unnecessary exposure.
Handling: Standard laboratory safety procedures should be followed, including wearing gloves, eye protection, and appropriate ventilation.
Storage: Store in a tightly sealed container, in a cool, dry place, away from direct sunlight and moisture.
Summary
3-Hydroxycinnamic acid is a hydroxycinnamic acid isomer with valuable antioxidant, anti-inflammatory, and potential health-promoting properties. It finds applications in the food, pharmaceutical, and cosmetic industries, as well as in organic synthesis and scientific research. Its stability and relatively low toxicity make it a useful compound for various industrial and research purposes.
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