Term: sawhorse projection https://doi.org/10.1351/goldbook.S05480 Definition: A perspective formula indicating the spatial arrangement of bonds on two adjacent carbon atoms. The bond between the two atoms is represented by a diagonal line, the left-hand bottom end of which locates the atom nearer the observer and the right-hand top end the atom that is further away. In general a Newman or zig-zag projection is preferred. S05480.png Related Terms: 1) perspective formula (http://doi.org/10.1351/goldbook.P04517). 2) newman (http://doi.org/10.1351/goldbook.N04134). 3) zig-zag projection (http://doi.org/10.1351/goldbook.Z06747). Image: Not defined (https://goldbook.iupac.org/img/inline/S05480.png) Source: PAC, 1996, 68, 2193. 'Basic terminology of stereochemistry (IUPAC Recommendations 1996)' on page 2217 (https://doi.org/10.1351/pac199668122193) Citation: 'sawhorse projection' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.S05480 License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.