Bring the power of IUPAC naming to your desktop!

ACD/Name (Chemist Version) offers a standardized set of features for quick and simple generation of IUPAC names, and structures from names. It is a streamlined version of our popular ACD/Name software.

View a full description and pricing on our web store.

Guide to Name Construction

R-4.0 Introduction

In this Section, principles regarding name construction are presented. It is recognized that in chemical discussions it may sometimes be convenient to depart from rigorous rules in order to provide a name more appropriate to the chemical intent or to avoid obscuring an important feature. However, such deviations should not be allowed without good reason, and names so derived are not recommended for general use.

The application of the general principles discussed in Section R-4 will not necessarily lead to a unique name but the name obtained should be unambiguous. Recommendations leading to a unique preferred name when followed closely are in preparation and will be contained in a separate publication. The latter goal is not necessarily the aim of a practising chemist who wants to communicate with his colleagues in familiar, well understood terms, but it may be appropriate to those who chemical names in legislative documents, or for indexing and retrieval.

See Also:
R-4.1 General Principles
R-4.2 Examples

This HTML reproduction is as close as possible to the published version [see IUPAC, Commission on Nomenclature of Organic Chemistry. A Guide to IUPAC Nomenclature of Organic Compounds (Recommendations 1993), 1993, Blackwell Scientific publications, Copyright 1993 IUPAC]. If you need to cite these rules please quote this reference as their source.

Published with permission of the IUPAC by Advanced Chemistry Development, Inc.,, +1(416)368-3435 tel, +1(416)368-5596 fax. For comments or suggestions please contact