tautomer
- Guideline or reference source
- ISO11238 IDMP Data elements and structures for the unique identification and exchange of regulated information on substances
- Definition
- chemical substances with the same elemental composition that are capable of facile interconversion between two or more structural forms NOTE Typically interconversion involves the migration of a hydrogen atom between two adjacent atoms (i.e. ketoenol). It is anticipated that a single tautomeric form will be associated with each substance and detailed rules will be developed within the implementation guide to indicate the tautomeric form associated with each chemical substance.
- Related Term
- chemical
- enantiomers
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