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Electronical chemicals

2,2',7'-Tribromo-9,9'-Spirobi[9H-fluorene]

CAS number

171408-77-8

Molecular formula
Product name 2,2',7'-Tribromo-9,9'-Spirobi[9H-fluorene]
Molecular Structure


2,2',7'-Tribromo-9,9'-Spirobi[9H-fluorene] is a type of white powder or crystalline solid in the chemical industry. It has a molecular formula of C20H13Br3 and a molecular weight of 585.31. This product is soluble in alcohol, acetone, diethyl ether, and other organic solvents, slightly soluble in water, and is insoluble in benzene.


2,2',7'-Tribromo-9,9'-Spirobi[9H-fluorene] is a versatile building block for organic synthesis. It is widely used in the production of pharmaceutical intermediates and agricultural chemicals. It can be used as an intermediate for the synthesis of fluorenone derivatives, fluoronaphthalene derivatives and other organic compounds.


2,2',7'-Tribromo-9,9'-Spirobi[9H-fluorene] has excellent physical and chemical properties. It has high purity, low melting point and good thermal stability. It has a melting point of 83-86℃ and a boiling point of 403.3℃. The product has a flash point of 195.2℃ and a relative density of 1.86.


2,2',7'-Tribromo-9,9'-Spirobi[9H-fluorene] is a safe and reliable product. In the process of production and application, it should be handled with caution and be kept away from heat, sparks, open flames and other sources of ignition. It should be stored in a cool, dry place, away from direct sunlight and sources of heat. Special protective measures should be taken when handling large quantities of this product.


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