2,2',7,7'-Tetrabromo-9,9'-spirobi[fluorene](CAS: 128055-74-3)

2,2',7,7'-Tetrabromo-9,9'-spirobi[fluorene], with the CAS number 128055-74-3, is a brominated derivative of spirobi[fluorene]. It is a white solid with high thermal stability and low solubility in water. The compound is known for its unique molecular structure, which includes two fluorene rings connected via a spiro bond and four bromine atoms attached to specific carbon positions.

This compound is primarily used in the synthesis of advanced materials and as a precursor in organic chemistry research. It finds applications in pharmaceutical development due to its potential for functional group modification, and in industrial processes for creating flame-retardant materials and specialty polymers. It is also used in research for studying molecular interactions and electronic properties.

2,2',7,7'-Tetrabromo-9,9'-spirobi[fluorene] is generally considered safe when handled properly. However, it should be treated with caution as it may cause skin and eye irritation. Safety standards recommend using appropriate personal protective equipment (PPE) and ensuring good ventilation. It is not classified as highly toxic but should be kept away from children and not ingested.

This compound should be stored in a cool, dry, and dark place to maintain its stability. It is best kept in a sealed container at a temperature below 25°C and with low humidity. Avoid exposure to light and moisture, and ensure it is stored in a well-ventilated area. It is recommended to keep it away from incompatible substances to prevent degradation or reaction.