Despite many efforts, the mechanism of this still-used detection reaction from 1904 is still unknown

150 Years Alfred Wöhlk

The Air that I Breathe – Part 5
How does climate change affect indoor air quality?

Colors in the Prehistoric and Archaic Era
Chemistry of the intense colors many ancient works of art like ceramic figurines, statues, and temples were decorated with

Total Synthesis of Astellatol
First enantiospecific total synthesis of astellatol, a rare pentacyclic sesterterpenoid

The Upper Limits of Oxidation States
Joint theoretical–experimental study reveals a maximum oxidation state near +8 under ambient conditions

Particulate Matter
Looking at size, formation, distribution, impact on humans related to fine particles or fine dust

Christoph Rüchardt (1929 – 2018)
Organic chemist and Emeritus at the University of Freiburg, Germany, passed away

Marker for Cancer Stem Cells
Fluorescent probe identifies tumor-initiating cells

Hydrogen Transfer: One Thing after the Other
Stepwise hydride transfer in the biosynthesis of chlorophyll

Water-Soluble Warped Nanographene
Possible application for photo-induced cell death