The 2-Butanone, 3-bromo-, with the CAS registry number 814-75-5 and EINECS registry number 212-404-6, has the systematic name of 3-bromobutan-2-one. It is a kind of clear light yellow to brown liquid, and the molecular formula of the chemical is C₄H₇BrO.

The characteristics of 2-Butanone, 3-bromo- are as followings: (1)ACD/LogP: 0.89; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.89; (4)ACD/LogD (pH 7.4): 0.89; (5)ACD/BCF (pH 5.5): 2.78; (6)ACD/BCF (pH 7.4): 2.78; (7)ACD/KOC (pH 5.5): 72.39; (8)ACD/KOC (pH 7.4): 72.39; (9)#H bond acceptors: 1; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 1; (12)Polar Surface Area: 17.07 Å²; (13)Index of Refraction: 1.45; (14)Molar Refractivity: 28.3 cm³; (15)Molar Volume: 105.2 cm³; (16)Polarizability: 11.21×10^-24cm³; (17)Surface Tension: 29.7 dyne/cm; (18)Density: 1.434 g/cm³; (19)Flash Point: 62.4 °C; (20)Enthalpy of Vaporization: 37.87 kJ/mol; (21)Boiling Point: 141.5 °C at 760 mmHg; (22)Vapour Pressure: 5.84 mmHg at 25°C. 

Uses of 2-Butanone, 3-bromo-: It can react with formamide to produce 4,5-dimethyl-thiazole. This reaction will need reagent phophorus pentasulphide, and the menstruum benzene. The reaction time is 48 hours, and the yield is about 92%. 

You should be cautious while dealing with this chemical. It irritates to eyes, respiratory system and skin, and it is also harmful by inhalation, in contact with skin and if swallowed. Therefore, you had better take the following instructions: Wear suitable protective clothing, gloves and eye/face protection, and if in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice.

Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: BrC(C(=O)C)C
(2)InChI: InChI=1/C4H7BrO/c1-3(5)4(2)6/h3H,1-2H3
(3)InChIKey: BNBOUFHCTIFWHN-UHFFFAOYAE

The toxicity data is as follows: