For any B2B procurement specialist or R&D scientist, a thorough understanding of a chemical intermediate's properties is fundamental to its effective utilization. 4-Mercaptophenylacetic Acid, identified by CAS number 39161-84-7, is an organic compound with a specific chemical profile that dictates its wide applicability. This detailed look at its properties and specifications aims to guide professionals when considering this essential building block.

Physically, 4-Mercaptophenylacetic Acid presents as an off-white powder. This appearance is a standard indicator for its typical form, but microscopic examination and purity analysis are critical. Key physical properties reported include a boiling point of approximately 336°C at atmospheric pressure and a melting point typically ranging from 105-109°C. These figures are vital for process engineers and chemists designing synthetic routes, ensuring optimal reaction conditions and separation techniques can be implemented. When you buy, these parameters are critical for your process validation.

Chemically, its molecular formula is C8H8O2S, with a molecular weight of 168.21 g/mol. The defining feature is the presence of a thiol (-SH) group attached to a phenylacetic acid moiety. This thiol group is highly reactive and participates in various chemical transformations, including nucleophilic substitutions, oxidation, and metal complexation. For manufacturers requiring high-purity intermediates, a minimum purity specification of 97% is often stated, ensuring minimal interference from impurities in downstream synthesis. Sourcing from a manufacturer that adheres to these high standards is non-negotiable for quality-sensitive applications.

The compound's solubility characteristics are also important. It is generally described as slightly soluble in water but soluble in common organic solvents such as ethanol and methanol, and dichloromethane. This solubility profile is critical for formulating reaction mixtures and for purification steps. Understanding these characteristics helps in selecting appropriate solvents for your synthesis or recrystallization processes when you purchase.

As a reliable manufacturer and supplier, we ensure that our 4-Mercaptophenylacetic Acid (CAS 39161-84-7) meets these stringent specifications. We provide comprehensive technical data to assist our clients in their evaluation and purchasing decisions. If you are looking to procure this intermediate, understanding these chemical and physical properties will enable you to make informed choices about its suitability for your specific applications and to negotiate effectively for price and quantity.