3-Ethylphenol is an aromatic organic compound belonging to the alkylphenol family. Its canonical name is 3-Ethylphenol, with the systematic name 3-ethylphenol. The compound is also known as meta-ethylphenol, phenol, 3-ethyl-, phenol, m-ethyl-, 1-ethyl-3-hydroxybenzene and benzene, 1-ethyl-3-hydroxy-. Its CAS number is 620-17-7, molecular formula is C8H10O, and molecular weight is 122.16.
The molecule combines a phenolic hydroxyl group with an ethyl substituent on a benzene ring, giving it the positional identity associated with the meta isomer. As an aromatic hydroxyl compound, it can participate in hydrogen bonding and acid-base chemistry characteristic of phenols, while the hydrocarbon substituent influences hydrophobicity and physical behaviour. Actual appearance, odour, phase behaviour and handling characteristics should be confirmed for the selected material.
3-Ethylphenol is principally encountered in laboratory investigation, analytical work and organic synthesis, where its defined substitution pattern can support comparative studies or serve as a starting material for further transformations. Phenolic compounds with alkyl substitution may also be examined in materials, fragrance-related or process-development research, but a particular application should not be inferred solely from the chemical name. End-use acceptance depends on technical evaluation.
Selection should begin with identity confirmation, intended reaction or analytical method, and compatibility with the process environment. Buyers should consider the required documentation, impurity profile, storage conditions, exposure controls and regional obligations relevant to their operation. The stated formula and molecular weight support identification, but they do not establish purity, physical specifications or regulatory status. Suitability of any particular grade requires application-specific assessment before use. For commercial selection, the compound name should be considered separately from the specification and supplied form required for the intended process.