Main ring

{
  "id": "MLC-T-CHM-013253",
  "term": "Main ring",
  "field": "Chemistry",
  "definition": "The macrocycle chosen as the reference ring for naming a bridged polycyclic macromolecule, or a polycyclic macromolecular portion, because its subunits rank highest in seniority. The other rings are then described relative to it. Where a macrocycle carries macrocyclic substituents, the highest-seniority ring is called the parent macrocycle.",
  "subject": "Polymer",
  "see_also": [
    "polycyclic macromolecule"
  ],
  "references": [
    "PAC, 2008, 80, 201. 'Structure-based nomenclature for cyclic organic macromolecules (IUPAC Recommendations 2008)' on page 205 (https://doi.org/10.1351/pac200880020201)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/main-ring/"
}