Molecular Structure of 4-(Pyrrolidine-1-carbonyl)phenylboronic acid (CAS NO.389621-81-2):

Systematic Name: [4-(Pyrrolidin-1-ylcarbonyl)phenyl]boronic acid 
Molecular Formula: C₁₁H₁₄BNO₃
Molecular Weight: 219.04 
H bond acceptors: 4
H bond donors: 2
Freely Rotating Bonds: 4
Index of Refraction: 1.586
Melting Point: 136-140 °C
Molar Refractivity: 58.39 cm³
Molar Volume: 173.7 cm³
Surface Tension: 54.5 dyne/cm
Density: 1.26 g/cm³
Flash Point: 224.1 °C
Enthalpy of Vaporization: 74.32 kJ/mol
Boiling Point: 446.9 °C at 760 mmHg
Vapour Pressure: 9E-09 mmHg at 25 °C
Product Categories: BORONICACID; blocks; BoronicAcids; Boronic acids; Aryl; Organoborons
SMILES: O=C(c1ccc(B(O)O)cc1)N2CCCC2
InChI: InChI=1/C11H14BNO3/c14-11(13-7-1-2-8-13)9-3-5-10(6-4-9)12(15)16/h3-6,15-16H,1-2,7-8H2
InChIKey: VKPBESPVHGDDJS-UHFFFAOYAA

Safety Information of 4-(Pyrrolidine-1-carbonyl)phenylboronic acid (CAS NO.389621-81-2):
Hazard Codes: Xi
Risk Statements: 36/37/38 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36/37/39 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
Hazard Note: Irritant

 4-(Pyrrolidine-1-carbonyl)phenylboronic acid (CAS NO.389621-81-2), its Synonyms are Boronic acid,B-[4-(1-pyrrolidinylcarbonyl)phenyl]- ; Boronicacid, [4-(1-pyrrolidinylcarbonyl)phenyl]- (9CI) ; (4-(Pyrrolidinocarbonyl)phenyl)boronic acid ; 4-(Pyrrolidine-1-carbonyl)benzeneboronicacid ; [4-[(Pyrrolidin-1-yl)carbonyl]phenyl]boronic acid .