Molecular structure of Barium bromide (CAS NO.10553-31-8) is:

Product Name: Barium bromide
CAS Registry Number: 10553-31-8
IUPAC Name: barium(2+) dibromide
Molecular Weight: 297.135 [g/mol]
Molecular Formula: BaBr₂
H-Bond Donor: 0
H-Bond Acceptor: 2 
EINECS: 234-140-0
Melting Point: 850 °C 
Density: 4.781 g/cm³
Sensitive: Hygroscopic
Stability: Stable.
Enthalpy of Vaporization: 19.92 kJ/mol 
Vapour Pressure: 20200 mmHg at 25°C
Product Categories: Barium Salts;BariumMetal and Ceramic Science;Crystal Grade Inorganics;Inorganic Salts;Salts;Synthetic Reagents

 Barium bromide (CAS NO.10553-31-8) is a precursor to chemicals used in photography and to other bromides. It was used to purify radium in a process of fractional crystallization devised by Marie Curie.

Safty information about Barium bromide (CAS NO.10553-31-8) is:
Hazard Codes: Xn
Risk Statements: 20/22 
R20/22:Harmful by inhalation and if swallowed.
Safety Statements: 28 
S28:After contact with skin, wash immediately with plenty of soap-suds.
RIDADR: UN 1564 6.1/PG 2
WGK Germany: 1
HazardClass: 6.1
PackingGroup: III

 Barium bromide , its cas register number is 10553-31-8. It also can be called Bariumbromide (8CI) ; Barium bromide (BaBr₂) .It is a white crysatalline powder.It dissolves well in water and is toxic in aqueous solution.