A chemical structure of a molecule is a spatial arrangement of its atoms and their chemical bonds. Its determination includes a chemist 's specifying the molecular geometry and, when feasible …

Search chemicals by name, molecular formula, structure, and other identifiers. Find chemical and physical properties, biological activities, safety and toxicity information, patents, literature …

Nov 15, 2025 · Molecule, a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties …

Use this chemical structure search tool to search our chemical database for an exact or substructure match on your molecule of interest. You can also use this chemical structure tool …

Atoms are comprised of protons, neutrons and electrons. Protons and neutrons are found in the nucleus of the atom, while electrons are found in the electron cloud around the nucleus. The …

Aug 18, 2025 · Chemical structure describes the precise arrangement of atoms and the specific chemical bonds connecting them within a molecule, including their spatial organization in three …

A free chemical structure database providing fast text and structure search access to over 130 million structures from hundreds of data sources.

Chemical structure determines the molecular geometry of the molecule. Russian Chemist Alexander Butlerov acknowledged that molecules are not random clusters of atoms and …

Chemical structures refer to the arrangement of atoms within a molecule. This includes the connectivity between atoms and the spatial arrangement, which is fundamental in determining …

The structural formula of a chemical compound is a graphic representation of the molecular structure (determined by structural chemistry methods), showing how the atoms are connected …