Quasi-racemic compound

{
  "id": "MLC-T-CHM-009775",
  "term": "Quasi-racemic compound",
  "field": "Chemistry",
  "definition": "A crystalline 1:1 compound built from two quasi-enantiomers, which are closely related but constitutionally different species whose shared chiral part has opposite handedness. Its crystal packing resembles that of a true racemic compound, with the two molecular types alternating in an ordered lattice. Fredga's quasi-racemate method used the formation of such compounds, detected by melting-point diagrams, to correlate configurations of related chiral compounds.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "association",
    "quasi-enantiomers"
  ],
  "references": [
    "PAC, 1996, 68, 2193. 'Basic terminology of stereochemistry (IUPAC Recommendations 1996)' on page 2216 (https://doi.org/10.1351/pac199668122193)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/quasi-racemic-compound/"
}