Alanine (Ala, A) amino acid, molecular model. Amino acids are the building blocks of all proteins. Atoms are represented as spheres with conventional color coding: hydrogen (white), carbon (grey), oxygen (red), nitrogen (blue)
Sulfuric acid (Sulfuric acid) molecule. Used in the treatment of colds and flu. Atoms are represented as spheres with conventional color coding: hydrogen (white), carbon (grey), oxygen (red), nitrogen (blue).