For chemists and process engineers, a thorough understanding of a chemical compound’s properties is foundational to its successful application. 4,6-Diaminoresorcinol Dihydrochloride, identified by CAS number 16523-31-2, is an organic compound with a distinct molecular structure that dictates its reactivity and physical characteristics. As a dihydrochloride salt of 4,6-diaminoresorcinol, it presents as a white to off-white crystalline solid, typically with a purity level of 99.5% or higher from reputable suppliers.

The molecular formula, C6H10Cl2N2O2, and a molecular weight of approximately 213.06 g/mol, provide essential data for stoichiometric calculations in synthesis. The presence of two amino groups (-NH2) and two hydroxyl groups (-OH) attached to the benzene ring makes this molecule a highly functionalized aromatic compound. These functional groups are key to its role as an intermediate, enabling it to participate in various reactions such as condensation, polymerization, and substitution reactions. For instance, its use as a monomer in the creation of high-performance polymers like PBO fibers leverages these reactive sites.

Typical physical properties, such as its solid form and solubility characteristics (often described as 'almost transparency' in water, indicative of good solubility for a salt), are vital for handling and formulation. Storage recommendations usually advise keeping it in a sheltered, dry, and dark place to maintain its stability and prevent degradation. Understanding its melting point, often listed as decomposing above 254 °C, is also critical for process design, especially in applications involving elevated temperatures.

When sourcing this compound, R&D scientists and procurement managers should pay close attention to these chemical and physical properties. Ensuring that the material purchased from a manufacturer or supplier meets the specified characteristics is essential for reproducible results in synthesis. Whether you are looking to buy this chemical for advanced material applications or as a pharmaceutical intermediate, a detailed understanding of its properties will guide your selection and usage, ensuring optimal performance and safety.