UNKNOWN ATOM OR ION

Isomeric SMILES

*

InChI

Not curated

{
  "aliases": [
    "UNKNOWN ATOM OR ION"
  ],
  "ccd_ids": [
    "UNX"
  ],
  "ccd_names": "[\"UNKNOWN ATOM OR ION\"]",
  "ccd_types": "[\"non-polymer\"]",
  "chemical_id": "CCD_UNRESOLVED:UNX",
  "connectivity_block": null,
  "curated_source_sha256": null,
  "curation_version": "frozen-v1.2",
  "external_identifiers": {},
  "formal_charge_by_ccd": "{\"UNX\": 0}",
  "formulae": "[\"X\"]",
  "geometry_note": "CCD ideal SDF is a reference chemical geometry, not a deposited bound pose.",
  "identity_status": "unresolved_CCD_placeholder",
  "inchikey": null,
  "inventory_origin": "v1_CCD_inventory",
  "isomeric_smiles": "*",
  "primary_name": "UNKNOWN ATOM OR ION",
  "retrieval_date": "2026-10-24",
  "smiles_stereo_by_ccd": "{\"UNX\": \"*\"}",
  "source_metadata_sha256": "{\"UNX\": \"c70ada997bd2e75ad039b8b7326c69460fd830c63d4d40c47914556d8278234a\"}",
  "source_urls": [
    "https://www.rcsb.org/ligand/UNX"
  ]
}