Tert-Butanol molecule. Atoms are represented as spheres ad are colour-coded: carbon (black), hydrogen (white) and oxygen (red).

Cefuroxime antibiotic, molecular model. Atoms are represented as spheres and are colour-coded: carbon (grey), hydrogen (white), nitrogen (blue), oxygen (red) and sulphur (yellow).

Prozac. Molecular model of the antidepressant drug fluoxetine, which is marketed as Prozac. Atoms are represented as spheres and are colour-coded: carbon (black), hydrogen (silver), nitrogen (blue), oxygen (red) and fluorine (green).

Carisoprodol muscle relaxant, molecular model. Atoms are represented as spheres and are colour-coded: carbon (grey), hydrogen (white), oxygen (red) and nitrogen (blue).

Donepezil Alzheimer's drug, molecular model. Atoms are represented as spheres and are colour-coded: carbon (grey), hydrogen (white), oxygen (red) and nitrogen (blue).

Mesterolone molecule, illustration

Nitrofen herbicide, molecular model. Atoms are represented as spheres and are colour-coded: carbon (grey), hydrogen (white), nitrogen (blue), oxygen (red) and chlorine (green).

Paracetamol molecule. Atoms are represented as spheres and are colour-coded: carbon (black), hydrogen (white), nitrogen (blue) and oxygen (red).

Adrenaline molecule. Atoms are represented as spheres and are colour-coded: carbon (black), hydrogen (white), nitrogen (blue) and oxygen (red).

Primin allergen molecule, illustration

Tebufenozide molecule, illustration

Xanthine molecule, illustration

"Quercetin plant molecule. Atoms are represented as spheres with conventional colour coding: hydrogen (white), carbon (black), oxygen (red). "

"Prednisolone corticosteroid drug molecule. Atoms are represented as spheres with conventional colour coding: hydrogen (white), carbon (black), oxygen (red). "

"Neostigmine drug molecule. Atoms are represented as spheres with conventional colour coding: hydrogen (white), carbon (black), oxygen (red), nitrogen (blue). "

"Tetracaine local anesthetic drug molecule. Atoms are represented as spheres with conventional colour coding: hydrogen (white), carbon (black), oxygen (red), nitrogen (blue). "

"Paromomycin aminoglycoside antibiotic drug molecule. Atoms are represented as spheres with conventional colour coding: hydrogen (white), carbon (black), oxygen (red), nitrogen (blue). "

"Rhamnose (L-rhamnose) deoxy sugar molecule. Used in cosmetics to treat wrinkles. Atoms are represented as spheres with conventional colour coding: hydrogen (white), carbon (black), oxygen (red). "

"Suramin sleeping sickness drug molecule. Atoms are represented as spheres with conventional colour coding: hydrogen (white), carbon (black), oxygen (red), nitrogen (blue), sulfur (yellow). "

"Suramin sleeping sickness drug molecule. Atoms are represented as spheres with conventional colour coding: hydrogen (white), carbon (black), oxygen (red), nitrogen (blue), sulfur (yellow). "

"Prednisolone corticosteroid drug molecule. Atoms are represented as spheres with conventional colour coding: hydrogen (white), carbon (grey), oxygen (red). "

"Prednisolone corticosteroid drug molecule. Atoms are represented as spheres with conventional colour coding: hydrogen (white), carbon (grey), oxygen (red). "

"Norethisterone enanthate (norethindrone aenanthate) injectable contraceptive drug molecule. Atoms are represented as spheres with conventional colour coding: hydrogen (white), carbon (black), oxygen (red). "

"Chlorocresol (p-chlorocresol) antiseptic and preservative molecule. Atoms are represented as spheres with conventional colour coding: hydrogen (white), carbon (black), oxygen (red), chlorine (green). "

Glucose sugar, molecular model. Atoms are represented as spheres and are colour-coded: carbon (black), hydrogen (silver) and oxygen (red).