For chemists, chemical engineers, and researchers, a thorough understanding of a compound's properties is fundamental to its successful application. 3,5-Dimethyl-4-(methylsulfanyl)phenol, identified by CAS number 7379-51-3, is a chemical intermediate with a specific set of physical and chemical characteristics that dictate its utility in various synthetic pathways, particularly in the pharmaceutical and agrochemical industries. This technical overview aims to provide essential insights for those looking to buy or work with this compound.

Physically, 3,5-dimethyl-4-(methylsulfanyl)phenol typically presents as a yellowish crystal. Its molecular formula is C9H12OS, with a molecular weight of 168.256 g/mol. Key physical properties include a density of approximately 1.1 g/cm³ and a relatively high boiling point of around 267.9 °C at standard atmospheric pressure (760 mmHg). The flash point is noted at approximately 130.8 °C, indicating it is a combustible material that requires appropriate handling and storage. Its vapor pressure at 25°C is quite low, around 0.0 mmHg, suggesting it is not highly volatile under standard conditions. The refractive index is listed as 1.585.

Chemically, the presence of the phenolic hydroxyl group and the methylsulfanyl group imparts specific reactivity to the molecule. The hydroxyl group can undergo reactions typical of phenols, such as esterification, etherification, and electrophilic aromatic substitution, though the electron-donating methyl groups and the sulfur moiety will influence the regioselectivity and reactivity. The methylsulfanyl group (-SCH3) can also participate in various sulfur-involved reactions, such as oxidation. These functional groups make 3,5-dimethyl-4-(methylsulfanyl)phenol a versatile intermediate for building more complex organic structures.

Understanding these properties is vital for anyone looking to purchase or utilize this chemical. Whether for synthesizing agrochemicals like Mercaptodimethur or for custom pharmaceutical intermediate development, knowing its physical state, stability, and reactivity helps in designing efficient reaction conditions and ensuring safe handling. Manufacturers and suppliers provide this detailed information to assist customers in making informed decisions about their chemical sourcing needs.