The Thieno(3,4-c)thiophene-2,5-5(IV), 1,3,4,6-tetraphenyl- has CAS registry number 36516-81-1. Its molecular formula is C₃₀H₂₀S₂ and molecular weight is 444.609800. What's more, its IUPAC name is 1,3,4,6-Tetraphenylthieno[3,4-c]thiophene.

Physical properties about the Thieno(3,4-c)thiophene-2,5-5(IV), 1,3,4,6-tetraphenyl- are: (1)#H bond acceptors: 0; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 4; (4)Polar Surface Area: 28.24 Å²; (5)Index of Refraction: 1.68; (6)Molar Refractivity: 141.13 cm³; (7)Molar Volume: 373 cm³; (8)Surface Tension: 48.1 dyne/cm; (9)Density: 1.19 g/cm³; (10)Flash Point: 338.2 °C; (11)Enthalpy of Vaporization: 90.5 kJ/mol; (12)Boiling Point: 635.6 °C at 760 mmHg; (13)Vapour Pressure: 2.3E-15 mmHg at 25 °C.

You can still convert the following datas into molecular structure:
(1) SMILES: s3c(c2\C(=S=C(\c1ccccc1)c2c3c4ccccc4)c5ccccc5)c6ccccc6
(2) InChI: InChI=1/C30H20S2/c1-5-13-21(14-6-1)27-25-26(29(31-27)23-17-9-3-10-18-23)30(24-19-11-4-12-20-24)32-28(25)22-15-7-2-8-16-22/h1-20H
(3) InChIKey: ZIEILZXADXBUBP-UHFFFAOYAS