IUPAC Name: (2,3-Difluorophenyl)boronic acid
Molecular Formula: C₆H₅BF₂O₂
Molecular Weight: 157.91 g/mol
SMILES: Fc1cccc(B(O)O)c1F Copy 
InChI: InChI=1/C6H5BF2O2/c8-5-3-1-2-4(6(5)9)7(10)11/h1-3,10-11H
Product Categories: blocks; BoronicAcids; FluoroCompounds; Boric Acid; Fluorobenzene; Boronic Acid; Aryl; Halogenated; Organoborons; B (Classes of Boron Compounds); Boronic Acids; Boronic Acids; Boronic Acids and Derivatives
Melting Point: 95 °C (dec.)(lit.)
storage temperature: 0-6 °C
Index of Refraction: 1.485 
Molar Refractivity: 33.51 cm³ 
Molar Volume: 116.7 cm³
Surface Tension: 36.1 dyne/cm 
Density: 1.35 g/cm³ 
Flash Point: 120 °C 
Enthalpy of Vaporization: 54.21 kJ/mol 
Boiling Point: 274.8 °C at 760 mmHg 
Vapour Pressure of 2,3-Difluorophenylboronic acid (CAS NO.121219-16-7): 0.00257 mmHg at 25 °C

  2,3-Difluorophenylboronic acid (CAS NO.121219-16-7) is used as intermediates of liquid crystals.

Hazard Codes: Xn,Xi
Risk Statements: 36/37/38-22
R36/37/38:Irritating to eyes, respiratory system and skin. 
R22:Harmful if swallowed.
Safety Statements: 37/39-26-36/37 
S37/39:Wear suitable gloves and eye/face protection. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37:Wear suitable protective clothing and gloves.
WGK Germany: 3
Hazard Note: Irritant
HazardClass of 2,3-Difluorophenylboronic acid (CAS NO.121219-16-7): IRRITANT

  2,3-Difluorophenylboronic acid (CAS NO.121219-16-7), its Synonyms are 2,3-Difluorophenylboronic acid, 97+% ; 2,3-Difluorobenzeneboronic acid 98% ; 2,3-Difluorophenylboronic Acid (contains varying amounts of Anhydride) . It is off-white to light beige crystalline powder.