3-((ethyl(nitroso)amino)methyl)benzenesulfonic acid (D4-Ring)

3-((ethyl(nitroso)amino)methyl)benzenesulfonic acid, also known as D4-Ring, is a chemical compound that is commonly used in the synthesis of pharmaceuticals and agrochemicals. It is a yellow crystalline solid that is soluble in water, ethanol, and acetone. The chemical formula of D4-Ring is C9H11NO5S, and its molecular weight is 237.25 g/mol. The compound has a melting point of 125-130°C and a boiling point of 383.9°C. Its density is 1.52 g/cm3. D4-Ring is utilized as a reagent in organic synthesis reactions, particularly in the preparation of sulfonamide derivatives. It is also used as a building block in the synthesis of various bioactive compounds, such as antiviral and anticancer agents. Additionally, D4-Ring is employed as a protecting group for amino acids and peptides. In terms of safety, D4-Ring can cause irritation to the skin, eyes, and respiratory tract. It is also considered a mutagen and carcinogen, and thus should be handled with care. Proper personal protective equipment, such as gloves and goggles, should be worn when working with this compound. In summary, D4-Ring is an important chemical reagent used in the production of pharmaceuticals and agrochemicals. Its unique chemical structure and properties make it a valuable tool in organic synthesis reactions. However, caution should be taken when handling this compound due to its potential health hazards.