Project Details Rules for Abbreviation of Protecting Group

Project No.:
Start Date:
01 January 2012
End Date:


To disseminate throughout the scientific community guidelines for rules for abbreviating protecting groups.


With the goal of presenting information in the scientific literature clearly and unambiguously, a set of rules for the abbreviation of protecting groups will be developed. It will be based on principles designed to be as descriptive and systematic as possible, but also being sufficiently pragmatic and flexible so as to accommodate the most important current abbreviations.


Jan 2012 – The Task Group’s plan is to have an initial draft of the proposed set of rules available for discussion with interested parties at the IUPAC Division III Subcommittee on Organic Synthesis meeting that is to be held during the IUPAC-ICOS meeting in Melbourne in July 2012 (

July 2012 – project announcement published in Chem. Int. July-Aug 2012, p. 22.

Jan 2013 – Rules for abbreviation of protecting groups (IUPAC Technical Report) published in Pure Appl. Chem., 2013, Vol. 85, No. 1, pp. 307-313;

June 2016 update Рthe project does need some amendments that the task group plans to carry out at the end of this year at a meeting in Melbourne alongside the 2016 International Biotechnology Symposium.

Sept 2019 – A report introducing more recent updates and corrections to align with the Blue Book is being prepared.

Nov 2021 РA draft has been completed and is under review by the Division.

Last updated 12 November 2021