The 1,3,2-Dioxaborolane,4,4,5,5-tetramethyl-2-(4-methyl-3-thienyl)-, with the CAS registry number 476620-20-9, is also known as 4-Methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene. This chemical's molecular formula is C₁₁H₁₇BO₂S and molecular weight is 224.1275.  Its systematic name is 4,4,5,5-Tetramethyl-2-(4-methylthiophen-3-yl)-1,3,2-dioxaborolane. What's more, it should be stored in condition of cold and dry.

Physical properties about 1,3,2-Dioxaborolane,4,4,5,5-tetramethyl-2-(4-methyl-3-thienyl)- are: (1)#H bond acceptors: 2; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 1; (4)Polar Surface Area: 46.7 Å²; (5)Index of Refraction: 1.501; (6)Molar Refractivity: 62.221 cm³; (7)Molar Volume: 211.284 cm³; (8)Polarizability: 24.666×10^-24 cm³; (9)Surface Tension: 32.638 dyne/cm; (10)Density: 1.061 g/cm³; (11)Flash Point: 138.443 °C; (12)Enthalpy of Vaporization: 52.394 kJ/mol; (13)Boiling Point: 305.304 °C at 760 mmHg; (14)Vapour Pressure: 0.001 mmHg at 25 °C.

You can still convert the following datas into molecular structure:
(1) SMILES: Cc2cscc2B1OC(C)(C)C(C)(C)O1
(2) InChI: InChI=1/C11H17BO2S/c1-8-6-15-7-9(8)12-13-10(2,3)11(4,5)14-12/h6-7H,1-5H3
(3) InChIKey: XXSMGZQARORQMO-UHFFFAOYAY