IUPAC Nomenclature Hub

Name any organic molecule the systematic way: a clear step-by-step algorithm, the functional-group seniority that sets the suffix, the substituent prefixes, and the common names worth knowing on sight.

  • The IUPAC naming algorithm, step by step
  • Functional-group seniority table — what becomes the suffix
  • Substituent prefixes, multiplying prefixes, and chain stems
  • Common-name → IUPAC conversions and ring nomenclature