Molecular structure of Methyl 2,4-dibromobutyrate (CAS NO.70288-65-2) is:

Product Name: Methyl 2,4-dibromobutyrate
CAS Registry Number: 70288-65-2
Molecular Formula: C₅H₈Br₂O₂
Molecular Weight: 259.92
Storage temp.: 2-8°C
Index of Refraction: 1.512 
Molar Refractivity: 42.41 cm³ 
Molar Volume: 141.2 cm³
Surface Tension: 40.9 dyne/cm 
Density: 1.839 g/cm³ 
Flash Point: 97.1 °C 
Enthalpy of Vaporization: 47.37 kJ/mol 
Boiling Point: 236.9 °C at 760 mmHg 
Vapour Pressure: 0.0463 mmHg at 25 °C  
Product Categories: C₂ to C₅;Carbonyl Compounds;Esters
SMILES: BrC(C(=O)OC)CCBr 
InChI: InChI=1/C5H8Br2O2/c1-9-5(8)4(7)2-3-6/h4H,2-3H2,1H3
InChIKey: DQHIGEQXJBMKKY-UHFFFAOYAW 
Std. InChI: InChI=1S/C5H8Br2O2/c1-9-5(8)4(7)2-3-6/h4H,2-3H2,1H3
Std. InChIKey: DQHIGEQXJBMKKY-UHFFFAOYSA-N 

Safty information about Methyl 2,4-dibromobutyrate (CAS NO.70288-65-2) is:
Hazard Codes: Xi
Risk Statements: 36/37/38 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing.
WGK Germany: 3
F: 19

 Methyl 2,4-dibromobutyrate , its cas register number is 70288-65-2. It also can be called Butanoic acid, 2,4-dibromo-methyl ester .