Guaiazulene belongs to the class of azulene compounds, known for their vibrant blue color. Guaiazulene produces a blue color ...

Amino acids possess the general structure as shown below. The R group differs according to the identity of the amino acid. The simplest and smallest amino acid is glycine, for which the R group is ...

Chemically, an amino acid is a molecule that has a carboxylic ... Each of the 20 amino acids has a specific side chain, known as an R group, that is also attached to the α carbon.