The Boronic acid,B-(3-formyl-2-thienyl)-, with the CAS registry number 17303-83-2, has the systematic name of (3-formylthiophen-2-yl)boronic acid. It is a kind of air sensitive chemical, and belongs to the following product categories: Aldehydes; Azoles; Blocks; BoronicAcids; Boronic Acids; Boronic Acids and Derivatives; Heteroaryl. And the molecular formula of the chemical is C₅H₅BO₃S.

The characteristics of Boronic acid,B-(3-formyl-2-thienyl)- are as followings: (1)ACD/LogP: 0.38; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.38; (4)ACD/LogD (pH 7.4): 0.3; (5)ACD/BCF (pH 5.5): 1.14; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 38.29; (8)ACD/KOC (pH 7.4): 31.61; (9)#H bond acceptors: 3; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 4; (12)Polar Surface Area: 63.77 Å²; (13)Index of Refraction: 1.573; (14)Molar Refractivity: 36.39 cm³; (15)Molar Volume: 110.4 cm³; (16)Polarizability: 14.42×10^-24cm³; (17)Surface Tension: 57.2 dyne/cm; (18)Density: 1.41 g/cm³; (19)Flash Point: 184.4 °C; (20)Enthalpy of Vaporization: 66.4 kJ/mol; (21)Boiling Point: 381.2 °C at 760 mmHg; (22)Vapour Pressure: 1.72E-06 mmHg at 25°C.

You should be cautious while dealing with this chemical. It irritates to eyes, respiratory system and skin. Therefore, you had better take the following instructions: Wear suitable protective clothing, 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: O=Cc1ccsc1B(O)O
(2)InChI: InChI=1/C5H5BO3S/c7-3-4-1-2-10-5(4)6(8)9/h1-3,8-9H
(3)InChIKey: HYXMHAHVUFTVFZ-UHFFFAOYAF