What is 4-bromophenylboronic acid

Product name:4-bromophenylboronic acid
CAS:5467-74-3
Molecular Formula:C6H6BBrO2
Formula Weight:     200.83
Description:
Melting point:280 ºC
Boiling point:315°Cat760mmHg
Flash Point:144.3°C
Density:1.67g/cm³Apperance:white to light yellow crystal powder.
Use:Serve as medicine inte