Nomenclature for Patent Submission and Control

While international bodies such as IUPAC (International Union of Pure and Applied Chemistry) set out definitive rules and conventions for chemical nomenclature, it is still an area rife with variation. Molecular entities may be given trade, trivial, or non-systematic names; be named according to CAS Index or IUPAC rules; or be shortened to acronyms. Chemical names in published literature and patents are often inaccurate and/or ambiguous, not only making prior-art searches more difficult, but also affecting the vulnerability of new patents.

Accuracy and comprehensive coverage are two key criteria in nomenclature generation for chemical patenting. ACD/Labs' nomenclature software produces unambiguous, consistent, and accurate names for chemical entities, and provides additional tools to aid prior art searches.

Quick and Accurate Name Generation

ACD/Name is a simple, user-friendly software tool developed by nomenclature experts. ACD/Name strives to avoid ambiguity, while considering possible isomeric forms and numerous nomenclature variations. Our software focuses on providing the most accurate nomenclature (with alerts if the name is ambiguous and therefore not provided) and breadth of chemistry support.

Important Features Pertaining to IP

  • Structure-to-Name according to either IUPAC or CAS Index type rules
  • Detailed protocol IUPAC names, with links between structural elements and the corresponding portion of the name, and links to IUPAC recommendations
  • Broad chemical diversity
  • Naming in English, French, German, and seven other languages

View the full list of features.


  • Consistent and accurate naming of chemical entities to avoid examiner complaints and time delays
  • Clear explanation of how the compound is named in response to examiner disagreements
  • Coverage of important but challenging areas of chemistry such as stereoisomers, tautomers, polymers, biological molecules, and organometallics. Generate names for single chemical structures in seconds according to IUPAC and CAS Index rules.

Our full-featured drawing package ACD/ChemSketch provided with Name also handles Markush structures for representation of a family of analogs, for example.

Applications in Prior Art

As mentioned above, ACD/Name can also help in prior art searches.

  • Structure-to-Name capabilities—simply type the name into a dialog box and the corresponding structure is provided
  • A Dictionary of over 130,000 common, trivial, and trade names and registry numbers conveniently assembled in a structure-searchable format
  • Support for other nomenclature representations such as SMILES strings, InChI, and InChI key

The features that make ACD/Name the choice of global pharmaceutical and chemical companies also provide value and integrity in intellectual property law. To discuss your needs or to learn more about ACD/Name, please contact us.