This document specifies the names of the components intended to be used in the standards, for harmonization purposes. It establishes the correspondence between the English and French names and gives the corresponding CAS Registry Number (CAS RN®)[1] for each component. It is applicable to all standards of the field “Essential oils”. [1] CAS Registry Number® (CAS RN®) is a trademark of CAS corporation. This information is given for the convenience of users of this document and does not constitute an endorsement by ISO of the product named. Equivalent products may be used if they can be shown to lead to the same results.