Asym-

{
  "id": "MLC-T-CHM-000854",
  "term": "Asym-",
  "field": "Chemistry",
  "definition": "A prefix used in chemical nomenclature to denote an unsymmetrical arrangement of substituents in a molecule. It indicates that the molecule lacks a plane of symmetry or a center of inversion. This prefix is often used in older naming conventions, particularly for substituted benzene derivatives.",
  "subject": "Organic and Biomolecular Chemistry",
  "references": [
    "Blue Book, p. 464 (https://www.acdlabs.com/iupac/nomenclature/)",
    "Red Book, 3rd ed., p. 245"
  ],
  "url": "https://mlchart.com/terminology/chemistry/asym/"
}