Acid Yellow 99(CAS: 10343-58-5)

Acid Yellow 99 (CAS: 10343-58-5) is a crystalline compound with a molecular weight of approximately 660.64 g/mol. It is sparingly soluble in water but highly soluble in common organic solvents like ethanol and acetone. Chemically, it exhibits good lightfastness and is used in various applications requiring vibrant yellow color. This compound is stable under normal conditions but may react with strong bases or reducing agents.

Acid Yellow 99 (CAS: 10343-58-5) is synthesized via condensation of a substituted anthraquinone derivative with a diazonium salt. The reaction is typically catalyzed by acid or base, and the process yields a compound with excellent color stability and brilliance. The method involves careful control of pH and temperature to achieve high selectivity and yield.

Acid Yellow 99 (CAS: 10343-58-5) is widely used in the textile, paper, and plastics industries due to its vibrant yellow color. It is also employed in the food industry as a colorant, though it must comply with regulatory standards. Additionally, it is used in printing inks and as a pigment in coatings and paints.

When handling Acid Yellow 99 (CAS: 10343-58-5), it is essential to wear appropriate personal protective equipment (PPE), including gloves, goggles, and a lab coat. Work in a well-ventilated area or under a fume hood to minimize exposure. Spills should be cleaned up using suitable absorbents, and the area should be thoroughly washed down. Always consult the Safety Data Sheet (SDS) for specific handling instructions and emergency procedures.