Cinnamic Acid Formula

Cinnamic Acid IUPAC Name

Cinnamic acid can be defined as an organic compound that consists of an acrylic acid group containing a substituent of phenyl at the third position of the. It is a monocarboxylic acid. Cinnamic acid is commonly found in cinnamon oil and shea butter. The cinnamic acid formula can be represented as C9H8O2. The chemical compound has a white-coloured crystalline appearance it is highly soluble in organic solvents.


Molecular Formula of Cinnamic Acid

The molecular formula of a compound defines the number of compounds available in the compound and also the elemental composition of the compound. The cinnamic acid molecular formula or alternatively said as the cinnamic acid chemical formula can be represented as C9H8O2. The cinnamic acid IUPAC name is (2E)-3-Phenylprop-2-enoic acid. Cinnamic acid is a monocarboxylic acid. The conjugate of the group is defined as the acid, the conjugate is cinnamate. Cinnamic acid belongs to the family of styrenes. The common name of the organic acid is trans-cinnamic acid, the cinnamic acid molecular weight is defined as the additive sum of all the atomic weight of all the elements of the compound, the trans-cinnamic acid molecular weight is 148.16 g/mol. The cinnamic acid structural formula can be represented as the following.


[Image will be uploaded soon]


Natural Occurrence of Cinnamic Acid

The cinnamic acid is naturally found in the oil of cinnamon. They are also found in shea butter, the other sources of cinnamic acid include balsams such as storax. Cinnamic acid also serves as the precursor of the various biological compounds such as flavonoids, isoflavonoids, coumarins, aurones, stilbenes, catechin, and phenylpropanoids.


Chemical Properties of Cinnamic Acid

The chemical properties of the compound include the following, cinnamic acid IUPAC name, trans-cinnamic acid molecular weight, the cinnamic acid molecular formula, complexity, hydrogen bond donor, and acceptor count. The number of the properties is listed below.

  1. Cinnamic acid is found as both trans-cinnamic acid and cis cinnamic acid.

  2. The trans-cinnamic acid molecular weight is 148.161 g/mol

  3. The acidity or the pKa value of the compound is 4.44

  4. The magnetic susceptibility of the compound is −7.836×10−5 cm3/mol

  5. The cinnamic acid chemical formula or the cinnamic acid molecular formula isC9H8O2.

  6. The hydrogen bond donor count of cinnamic acid is 1

  7. The hydrogen bond acceptor count of cinnamic acid is 2

  8. The number of rotatable bond in the compound is 2

  9. The complexity of the compound is 155.


Physical Properties of Cinnamic Acid

The physical properties of the compound include the following

  1. The density of the compound is 1.2475 g/cm3

  2. The boiling point of cinnamic acid is 300 °C

  3. The melting point of cinnamic acid is 113°C

  4. The structural formula of cinnamic acid can be defined as monocrystalline

  5. The physical appearance of the compound can be defined as White monoclinic crystals

  6. The chemical compound has a honey-like smell.

  7. The solubility of cinnamic acid in water is 500 mg/L


Other Names of the Chemical Compound

The cinnamic acid IUPAC name is (2E)-3-Phenylprop-2-enoic acid. The other common names of the compound include the following.

  1. Cinnamic acid

  2. trans-Cinnamic acid

  3. Phenylacrylic acid

  4. Cinnamyl 

  5. 3-Phenylacrylic acid

  6. (E)-Cinnamic acid

  7. Benzenepropenoic acid

  8. Isocinnamic acid


Preparation

There are various methods of preparation of the cinnamic acid, the most commonly used industrial method is the Perkin reaction, another common way of synthesis of cinnamic acid involves the Knoevenagel condensation, in this reaction the reactants benzaldehyde and malonic acid in the presence of a weak base undergo acid-catalyzed decarboxylation.


Uses of Cinnamic Acid

There are the following uses of the compound. They are listed below

  • They are used as flavouring agents

  • It is used in the production of indigo

  • It is also used in the production of some pharmaceuticals

  • It is used as a major ingredient in the perfume industry because it serves as a precursor of the following compounds used in the production of scent, methyl cinnamate, ethyl cinnamate, and benzyl cinnamate.


Conclusion

Cinnamic acid can be defined as an unsaturated carboxylic acid that can be found in both cis and trans conformation. The trans-cinnamic acid molecular weight is 148.161 g/mol. The cinnamic acid formula is represented as C9H8O2. The compound is naturally found in a solid, white crystalline state. The chemical compound is naturally found in cinnamon oil and shea butter. The commercial use of the compound is in the production of flavourings, synthetic indigo, and certain pharmaceuticals. 

FAQs (Frequently Asked Questions)

1. What is the Cinnamic Acid IUPAC Name?

Ans- The IUPAC name of the compound is (2E)-3-Phenylprop-2-enoic acid.

2.  What is the Major Use of Cinnamic Acid?

Ans- The major use of the chemical compound is in the manufacture of perfumes, cinnamic acid act as a precursor for industrially important chemicals. The compound is also used in the flavouring industry.

3. What is the Physical Appearance of the Compound?

Ans- THe physical appearance can be defined as a whitish monoclinic solid.