C13H18O2

C13H18O2 is a molecular formula that denotes a family of organic compounds containing 13 carbon atoms, 18 hydrogen atoms, and 2 oxygen atoms. Because many different arrangements can share this exact formula, C13H18O2 does not correspond to a single substance but to numerous structural isomers. The formula has five degrees of unsaturation, which typically arise from an aromatic ring or multiple pi bonds, possibly together with a carbonyl group or additional rings.

The two oxygen atoms can appear in various functional groups, so isomers with this formula may include esters, ketones, lactones, or ethers, among other motifs. The exact connectivity—how the carbon skeleton is arranged and where functional groups lie—determines the compound’s physical properties, reactivity, and applications.

Because many distinct compounds share the same formula, their properties can differ widely. Molar mass is about 206.29 g/mol, but melting point, boiling point, solubility, and odor depend on the specific structure. In practical contexts, C13H18O2 is encountered in chemical databases as a formula for potential fragrance, flavor, or synthetic intermediates, as well as research standards or reference materials.

Identification and characterization rely on spectroscopic and chromatographic methods. Mass spectrometry confirms the molecular formula (m/z ≈ 206), while infrared, nuclear magnetic resonance, and/or X-ray data reveal the exact arrangement of atoms. Without a defined isomer, the formula alone cannot specify a unique compound.