What are the physical properties of caffeic acid?

Caffeic acid is a naturally occurring phenolic acid that is commonly found in various plant sources, such as coffee, fruits, and vegetables.According to caffeic acid manufacturer, it has the following physical properties:

Appearance: Caffeic acid is a white to light yellow crystalline powder.

Solubility: Caffeic acid is sparingly soluble in water, but more soluble in ethanol and other polar solvents.

Melting point: The melting point of caffeic acid is around 216-219°C.

Odor: Caffeic acid has a faint, slightly bitter aroma.

PH: Caffeic acid has a slightly acidic pH, typically around 4.5-5.0.

Molecular weight: The molecular weight of caffeic acid is 180.16 g/mol.

Overall, the physical properties of caffeic acid make it a versatile and widely used natural compound in various industries, including food, cosmetics, and pharmaceuticals.