Guadecitabine cancer drug molecule (DNA methyltransferase inhibitor). 3D rendering. Atoms are represented as spheres with conventional colour coding: hydrogen (white), carbon (grey), nitrogen (blue), oxygen (red), phosphorus (orange).

Sarin nerve agent molecule (chemical weapon). Atoms are represented as spheres with conventional colour coding: hydrogen (white), carbon (grey), oxygen (red), phosphorus (orange), fluorine (light green).

Pentaerythritol tetranitrate (PETN) explosive molecule. Also used as angina drug (nitrate class). Atoms are represented as spheres with conventional colour coding: hydrogen (white), carbon (grey), oxygen (red), nitrogen (blue).

Fostamatinib rheumatoid arthritis drug molecule (Syk inhibitor). 3D rendering. Atoms are represented as spheres with conventional colour coding: hydrogen (white), carbon (grey), nitrogen (blue), oxygen (red), fluorine (gold), phosphorus (orange).

Luminol chemiluminescent molecule. Used to detect blood at crime scenes. Atoms are represented as spheres with conventional colour coding: hydrogen (white), carbon (grey), oxygen (red), nitrogen (blue).

Enobosarm drug molecule. Selective androgen receptor modulator (SARM) that is also used in sports doping. 3D rendering. Atoms are represented as spheres with conventional colour coding: hydrogen (white), carbon (grey), nitrogen (blue), oxygen (red),...

Enobosarm drug molecule. Selective androgen receptor modulator (SARM) that is also used in sports doping. 3D rendering. Atoms are represented as spheres with conventional colour coding: hydrogen (white), carbon (grey), nitrogen (blue), oxygen (red),...

Tabun, molecular model. This nerve agent is also known as GA. Atoms are represented as spheres and are colour-coded: carbon (grey), hydrogen (white), nitrogen (blue), oxygen (red) and phosphorous (orange).