Terms of Use

Last updated: 3 July 2026

License

ChemPencil for macOS is distributed exclusively through the Mac App Store. Your use of ChemPencil is governed by the Apple Media Services Terms and Conditions, specifically the Licensed Application End User License Agreement ("Standard EULA") between you and codemaker, the licensor of ChemPencil.

Ownership

ChemPencil and its associated documentation are copyright © 2026 codemaker. All rights reserved. "ChemPencil" is a trademark of codemaker. Chemical file-format names (MOL, SDF, RXN, RDF, CDXML, SMILES, InChI) are used for interoperability and are property of their respective owners.

Your content

Documents you create with ChemPencil belong to you. ChemPencil does not upload, share, or claim any rights in content you produce. See our Privacy Policy.

No warranty for scientific correctness

ChemPencil is a drawing and cheminformatics tool. Its calculated properties, nomenclature output, InChI / InChIKey values, and predicted spectra are computed from established open algorithms and are provided as-is, without any warranty of accuracy or suitability for a particular purpose. You are responsible for verifying any result before relying on it for research, regulatory, safety, or clinical decisions.

Third-party components

ChemPencil includes open-source components used under their respective licenses. A full list of components and licenses is available on request from support@chempencil.app.

Contact

Questions about these terms? Email support@chempencil.app.