Molecular Structure of 4-Fluoro-3-methylphenylboronic acid (CAS NO.139911-27-6):

IUPAC Name: (4-fluoro-3-methylphenyl)boronic acid 
Empirical Formula: C₇H₈BFO₂
Molecular Weight: 153.9466
H bond acceptors: 2
H bond donors: 2
Freely Rotating Bonds: 3
Polar Surface Area: 18.46 Å²
Index of Refraction: 1.505
Molar Refractivity: 38.02 cm³
Molar Volume: 128 cm³
Surface Tension: 37.7 dyne/cm
Density: 1.2 g/cm³
Flash Point: 124.3 °C
Enthalpy of Vaporization: 55.01 kJ/mol
Boiling Point: 282 °C at 760 mmHg
Vapour Pressure: 0.00163 mmHg at 25°C
Melting point:  212-217 °C(lit.)
BRN: 7474834
Product Categories: Fluorin-contained phenyl boronic acid series; blocks; BoronicAcids; FluoroCompounds; Boronic Acid series; Boronic acid; Aryl; Boronic Acids; Boronic Acids and Derivatives; Organoborons

Hazard Codes: Xi
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36/37/39-27
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S27:Take off immediately all contaminated clothing.
WGK Germany: 3
Hazard Note: Irritant
HazardClass: Irritant

  4-Fluoro-3-methylphenylboronic acid , with CAS number of 139911-27-6, can be called Boronicacid, (4-fluoro-3-methylphenyl)- (9CI) ; 3-Methyl-4-fluorophenylboronic acid ; 4-Fluoro-3-methylbenzeneboronic acid .