Skip to main content

10 Questions & Answers to Learn More about Cinnamic Acid



Cinnamic acid (CAS NO. 140-10-3) is an important substance because it is widely used in perfume, food, photographic, polymer and pharmaceutical industries, as well as for clinical and toxicological studies. Do you know anything about cinnamic acid? Here is a list of questions & answers which can help you to learn more about cinnamic acid.

What is cinnamic acid?

Cinnamic acid has the formula C6H5CHCHCOOH and is an odorless white crystalline acid, which is slightly soluble in water.
Cinnamic acid is a polyphenol and an antioxidant. It is created by the deamination of phenylalanine and it is then itself converted to any of the various polyphenols synthesized by plants. It is sometimes called the parent polyphenol because all of the myriad polyphenol compounds synthesized by plants are derived from cinnamic acid.
Thus whilst cinnamic acid is itself an antioxidant, its real importance stems from its role in the plant synthesis of the many important polyphenol antioxidant derivatives such as caffeic acid, vanillic acid, ferulic acid, and coumaric acid which are derived from cinnamic acid.

What is IUPAC name of cinnamic acid and what else is it called?

The IUPAC name of cinnamic acid is (E)-3-phenylprop-2-enoic acid. This chemical can be identified by different names, including: trans-Cinnamic acid; trans-3-Phenyl-2-propenoic acid; 3-Phenylpropenoic acid; Cinnamylic acid; 2-Propenoic acid, 3-phenyl-, (2E)-; 3-Phenylacrylic acid; 3-Phenylacrylic acid, etc…

Where does cinnamic acid come from?

Cinnamic Acid is obtained from oil of cinnamon, or from balsams such as storax. It is also found in shea butter.

Is cinnamic acid saturated or unsaturated?

Cinnamic acid is classified as an unsaturated carboxylic acid, it occurs naturally in a number of plants. It exists as both a cis and a trans isomer, although the latter is more common.

Is cinnamic acid soluble in water?

Cinnamic acid is slightly soluble in water, and freely soluble in many organic solvents. It is soluble in alcohol, ether, acetic acid, chloroform and acetone, etc…  It is very slightly soluble in water (25 : 0.1; 98 : 0.588), soluble in ethanol (25 : 23), chloroform (15 : 5.9), easily soluble in benzene, ether, acetone, acetic acid and carbon disulfide.

How to dissolve cinnamic acid?

Place 1.0 g of trans-cinnamic acid and 50 mL of 5% NaOH into a 250-mL Erlenmeyer flask. Heat the mixture to 90 oC on a hot plate to dissolve the solid. When the trans- cinnamic acid is dissolved, remove the flask from the hot plate.

What role does cinnamic acid play in cosmetics?

Cinnamic acid has been rated as a low hazard risk for use in skincare and cosmetic formulations and is safe to use as a topical application on the skin.

Is cinnamic acid a phenolic acid?

No, these compounds belong to different chemical classes of compounds.
Phenolic acids are compounds whose molecule contains both a phenolic ring, CH(OH)-, and a carboxyl group, -COOH.
Cinnamic acid is 3-phenylacrylic acid, CH-CH=CH-COOH and therefore lacks the phenolic ring characteristic of phenolic acids.

What is the differences between cis and trans cinnamic acid?

Cinnamic acid has trans-/cis- two isomers. The trans-isomer is more stable and has a melting point of 133°C, and a boiling point of 300°C. The cis-isomer forms three polymorphic forms with melting points of 68°, 58°, and 42°C, respectively; the first form, allocinnamic acid, exhibits the highest degree of stability. Cis-cinnamic acid is a naturally occurring compound, presumably converted from trans- cinnamic acid in higher plants.

What is the functions of cinnamic acid derivatives?

Cinnamic acid and its derivatives occur naturally in high levels of plant-based foods. Cinnamic acid derivatives are widely used in cosmetics and possess various functions.

Source from http://www.landmarkind.com/10-Questions-Answers-to-Learn-More-about-Cinnamic-Acid-id3186495.html

Comments

Popular posts from this blog

Properties, Synthesis and Applications of 3-Phenyl-1-propanol

3-Phenyl-1-propanol belongs to the class of organic compounds known as benzene and substituted derivatives. These are aromatic compounds containing one monocyclic ring system consisting of benzene. 3-Phenyl-1-propanol is found in alcoholic beverages. 3-Phenyl-1-propanol occurs in storax and fern balsam. Also present in Vaccinium species fruits, guava fruit and peel, blackberry, other fruits, rum, white wine, shitake mushroom, matsutake mushroom and peated malt. Synonyms of  3-Phenyl-1-propanol: 3-Phenylpropan-1-ol; 3-Phenyl-n-propanol; Hydrocinnamic alcohol; 3-Phenylpropyl alcohol; Phenylpropyl alcohol; Phenylpropylic alcohol; (3-Hydroxypropyl)benzene Chemical properties of 3-Phenyl-1-propanol: 3-Phenyl-1-propanol is colorless viscous liquid with a sweet scent of flowers and sweetmeat and the flavor of fresh fruit after dilution. Its boiling point is at 236 °C, flash point at 109 °C. It is soluble in ethanol, propylene glycol and most of the non-volatile oil...

Isoamyl p-Methoxycinnamate - A Highly Protective Sunscreen Agent

Isoamyl p-methoxycinnamate (CAS No. 71617-10-2) is a natural compound that absorbs ultraviolet (UV) light and it is found in the roots of the Indian Galangal plant, a member of the Ginger family. Commercially, it is prepared from Cinnamic acid which is found in the leaves of the cinnamon tree, and is chemically identical to the naturally occurring molecule. How does Isoamyl p-methoxycinnamate work as a sunscreen agent? Isoamyl p-methoxycinnamate is mainly made of a fabric with a certain sunscreen effect. The principle of sun protection is mainly occlusion, and it does not have a good effect on ultraviolet rays of a specific wavelength such as UVA. UVA band, wavelength 320 ~ 420nm, also known as long-wave black spot effect ultraviolet light. It has a strong penetrating power and can penetrate most transparent glass and plastic. More than 98% of the long-wave ultraviolet rays contained in sunlight can penetrate the ozone layer and the cloud layer to reach the surface of the earth...

Fragrance or Flavor Odor Type Listing

Fragrance and flavor substances are comparatively strong-smelling organic compounds with characteristic, usually pleasant odors. The odors of single chemical compounds are extremely difficult to describe unequivocally. The odors of complex mixtures are often impossible to describe unless one of the components is so characteristic that it largely determines the odor or flavor of the composition. Although an objective classification is not possible, an odor can be described by adjectives such as flowery, fruity, woody, or hay-like, which relate the fragrances to natural or other known products with similar odors. Such as, Pure ethyl cinnamate has a fruity and balsamic odor. A few terms used to describe odors are listed below: Aldehydic odor note of the long-chain fatty aldehydes, e.g., fatty-sweaty, ironed laundry, seawater Animal(ic) typical notes from the animal kingdom, e.g., musk, castoreum, skatole, civet, ambergris Ba...