Pigment Yellow 53(CAS: 1303-33-9)

Pigment Yellow 53 (CAS: 1303-33-9) is a yellow pigment with a crystalline form. Its molecular weight is approximately 821.7 g/mol. It is insoluble in water but soluble in organic solvents. Its chemical structure is based on a dibenzalacetone chromophore. This pigment is stable under normal conditions but may react with strong oxidizing agents. It has a high lightfastness and is resistant to weathering and fading.

Pigment Yellow 53 (CAS: 1303-33-9) is synthesized through the condensation of benzaldehyde and acetophenone in the presence of a Lewis acid catalyst such as aluminum chloride. The reaction yields a dibenzalacetone derivative, which is then converted into the final pigment through a series of chemical modifications. The overall process provides good yield and high selectivity.

Pigment Yellow 53 (CAS: 1303-33-9) is widely used in the printing ink, paint and coating, plastic, and textile industries. It is also applicable in the pharmaceuticals and food industries for coloring applications. Its high lightfastness and weather resistance make it particularly suitable for outdoor applications.

When handling Pigment Yellow 53 (CAS: 1303-33-9), ensure proper personal protective equipment (PPE) is used, including gloves, goggles, and lab coat. Store the pigment in a cool, dry place away from direct sunlight and heat sources. In case of spill, use appropriate absorbents and follow the safety data sheet (SDS) for disposal. Always work in a well-ventilated area or fume hood to avoid inhalation of dust or fumes.