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Isomer
01
any of two or more compounds having the same molecular formula but different arrangements of atoms and, consequently, different properties
Example
Propanol and isopropanol are isomers, sharing the same molecular formula but differing in the arrangement of their atoms.
The structural isomers butane and isobutane both have the molecular formula C₄H₁₀ but exhibit different structural arrangements.
Glucose and fructose are constitutional isomers, possessing the same molecular formula (C₆H₁₂O₆) but differing in their structural arrangements.
Pentane and isopentane are structural isomers, both having the molecular formula C₅H₁₂ but differing in their arrangement of carbon atoms.
The amino acid isoleucine and the sugar maltose are examples of isomers with identical molecular formulas but differing chemical structures.
