The Prefix ‘Nor’ in Chemical Nomenclature

  title={The Prefix ‘Nor’ in Chemical Nomenclature},
  author={John Henry Gaddum},
  • J. Gaddum
  • Published 1 June 1956
  • Chemistry
  • Nature
THE first use of the prefix ‘nor’ appears to be in a paper by Matthiessen and Foster1 published in 1868. They were studying the nitrogen-free substance opianic acid formed by the oxidation of narcotine and obtained evidence that it contained two methyl groups. They had used the term ‘normal opianic acid’ to mean the completely demethylated compound, and they then used the contraction ‘methylnoropianic acid’ for the monomethyl derivative. Since that time the prefix has generally been used to… 
1 Citations
Augustus Matthiessen and His Contributions to Chemistry.
The British scientist Augustus Matthiessen (1831–1870) is widely known for his investigations on the influence of temperature on the electric conductivity of metals and alloys. However, his