Direct fast brown m(CAS: 2429-82-5)

Direct fast brown m (CAS: 2429-82-5) is a water-soluble dye with a molecular weight of approximately 587.56 g/mol. It has a deep brown color and is highly soluble in water and ethanol. The dye exhibits good light and wash fastness. Chemically, it is stable under acidic conditions but can be affected by alkalis. It is typically used in textile dyeing and printing due to its excellent color strength and fastness properties.

Direct fast brown m (CAS: 2429-82-5) is synthesized by the condensation of a suitable aromatic amine with a dibromobenzene derivative in the presence of a catalyst such as sodium hydroxide. The reaction is typically carried out under basic conditions to ensure high selectivity and yield. The product undergoes further modifications to enhance its fastness and light stability, resulting in a commercially viable dye.

Direct fast brown m (CAS: 2429-82-5) is primarily used in the textile and dyeing industry for coloring fabrics and yarns. It is also employed in paper manufacturing, leather tanning, and food coloring applications due to its excellent fastness properties. In the pharmaceutical industry, it is used as a coloring agent in some formulations.

When handling Direct fast brown m (CAS: 2429-82-5), it is important to use appropriate personal protective equipment (PPE), including gloves, goggles, and a lab coat. Storage should be in a well-ventilated area, away from heat and direct sunlight. In case of spill, neutralize the spill with an appropriate acid or base, then clean up using standard procedures. Always refer to the Safety Data Sheet (SDS) for detailed handling and disposal information.