Urushiol: Chemistry in its element
Kat Arney introduces a two-faced tree sap that can cause nasty rashes or be made into beautiful Japanese furniture

Kat Arney introduces a two-faced tree sap that can cause nasty rashes or be made into beautiful Japanese furniture
Through an early ointment for spots through a medicine for syphilitic Victorians, Michael Freemantle traces the history of highly toxic mercuric chloride
The catnip compound that felines go crazy for could have exciting uses for humans, too, as Kat Arney finds out
Kiki Sanford explores how polyamines found in semen could be related to a long and healthy life
Michael Freemantle on chemical weapons and the birth of cancer chemotherapy
Forming layers just three atoms deep, molybdenum disulfide shows potential in filtration, flexible screens and minuscule transistors
Kit Chapman explains how a 'daft' pharmacy mix up led to a series of poisonings in Victorian Britain
Jane Austen’s Mr Darcy lends his name to a pheromone that lets mice feel the love, as Kat Arney discovers
Brian Clegg examines the colourful compounds that no red-blooded creature can do without: Porphyrins
Blue flashes and metallic water are just some of the tricks the smallest possible anion has up its sleeve
Brian Clegg introduces a crystalline hydrocarbon that isn't as tough as it sounds, but is the basis of a wide range of medicines
On-demand muscle paralysis revolutionised surgery. Katrina Krämer explores one of the key muscle relaxants used in medical procedures: Pancuronium bromide
The Seveso accident saw an accidental release of 2,3,7,8-tetrachlorodibenzo- p -dioxin (TCDD), commonly known as dioxin. Matt Gunther tells the tragic story.
With thoughts turning to our festively-expanded waistlines, Kit Chapman looks at a poster child in the battle against obesity
Eugenol, the smell most associated with cloves, may be one of the defining smells of Christmas, but it also leads a double life as fish anaesthetic and insect attractant...
This week, Neil Withers examines a compound with the 'wrong' number of bonds: Diborane
Jamie Durrani introduces one of the biggest selling pharmaceuticals in history, the 'mother's little helper': Diazepam
Katrina Krämer investigates the sad case of Christopher McCandless, who some believe consumed the poison swainsonine in the Alaskan wilderness
Kat Arney introduces bromodeoxyuridine, or BrdU, a nucleoside that revolutionised our ability to watch cells grow and divide
The whitest smile, the blondest blonde, the clearest complexion – all from one essential compound. Fernando Gomollón-Bel introduces benzoyl peroxide
Louise Crane reveals the compound that gives American chocolate and wet dogs their distinct aroma
Kat Arney explains how a protein that repairs broken DNA holds the key to killing cancer cells – but only if you stop it from doing its job
From medicine to the military, this compound makes lasers for a range of applications. Brian Clegg discovers neodymium chloride
Louise Crane documents the rise and fall of gabapentin – from ‘wonder drug’ to illicit substance in just 50 years
The story of one of the most ubiquitous artificial compounds
Katrina Kramer introduces the Nobel prize-winning ligand that will give you just the hand you need: BINAP or 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl
A substitute for one of the bases in DNA that can cause the death of cancer cells
Brian Clegg introduces a family of molecules that first gave fluffy softness to freshly washed clothes
Ben Valsler finds out why writing Alice’s adventures in Wonderland was such a headache for Lewis Carroll
Find out about the Black Prince’s ruby, which is no ruby at all