Sudan Black(CAS: 4197-25-5)

Sudan Black (CAS: 4197-25-5) is a deep brown to black dye commonly used in microscopy and histology. It is insoluble in water but soluble in organic solvents. Chemically, it is a polycyclic aromatic hydrocarbon and exhibits strong basic properties. Its molecular weight is around 172.23 g/mol. Sudan Black is not highly reactive but tends to adsorb onto surfaces, which affects its stability and solubility in different media.

Sudan Black (CAS: 4197-25-5) is synthesized through a multi-step process involving the condensation of anthracene with amines. The synthesis typically requires dehydration of anthracene derivatives, followed by coupling with aromatic amines. The process involves the use of strong bases like sodium hydroxide and is carried out under reflux conditions to achieve high yield and selectivity.

Sudan Black (CAS: 4197-25-5) is widely used in the pharmaceutical industry for staining tissues in histology. It is also applied in the polymer industry for dyeing and coloring applications. Additionally, Sudan Black is utilized in the production of sensors and as a marker in analytical chemistry. Its strong color and stability make it suitable for various applications requiring deep, clear staining.

When handling Sudan Black (CAS: 4197-25-5), it is essential to wear appropriate personal protective equipment (PPE) such as gloves, laboratory coat, and eye protection. Sudan Black should be stored in a cool, dry place away from direct sunlight and heat sources. Spills should be cleaned up carefully using absorbent material and disposed of according to local regulations. Always consult the Safety Data Sheet (SDS) for detailed handling and disposal information.