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ACD/Labs Blog

A Markush structure represents a group of related chemical compounds, commonly used in patents, structural elucidation, metabolite identification, and mixture representation. It allows variations in substituents, positions, frequencies, and homologies, streamlining patent claims and ensuring broad protection. Learn how ChemSketch makes it easy to draw and enumerate Markush structures.

Use ChemSketch to teach structure drawing. Teach students about stereochemistry, Lewis structures, nomenclature, and molecular properties. Create reports to share your work.

We still find it a thrill when we bump into someone who says “ACD/Labs…are you the ones who make ChemSketch?”, and they then go on to regale us with a story about when/where they were using the software. As one of the most basic software requirements for scientists—a tool that helps them document and communicate their science in chemical structures—ACD/ChemSketch is often one of the first pieces of software they will use in their career, which means there is often nostalgia attached to its use.