Sarin nerve gas. Computer artwork of exploding molecules of the nerve gas Sarin (methylphosphonefluridic, (1-methyl ester, chemical formula (C4.H10.O2.P.F)). Sarin molecules are seen being scattered by an explosion (lower left). The atoms in the molecules are shown as spheres and are colour-coded: carbon (blue), oxygen (red), hydrogen (white), phosphorus (yellow), fluorine (green). The bonds between the atoms are shown as cylinders. Sarin (also known as GB) is used in chemical weapons. It is deadly and works in minutes. Skin contact or inhalation leads to disruption of the nervous system leading to convulsions, paralysis and death.