The Thiophene,3,4-dichloro-, 1,1-dioxide, with the CAS registry number 52819-14-4, has the systematic name 3,4-dichlorothiophene 1,1-dioxide. Its molecular formula is C₄H₂Cl₂O₂S and its molecular weight is 185.028480.

Other characteristics of the Thiophene,3,4-dichloro-, 1,1-dioxide can be summarised as followings: (1)ACD/LogP: 0.16; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.15; (4)ACD/LogD (pH 7.4): 0.15; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 28.92; (8)ACD/KOC (pH 7.4): 28.92; (9)#H bond acceptors: 2; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 0; (12)Polar Surface Area: 42.52 Å²; (13)Index of Refraction: 1.603; (14)Molar Refractivity: 36.36 cm³; (15)Molar Volume: 105.7 cm³; (16)Polarizability: 14.41×10^-24cm³; (17)Surface Tension: 53.3 dyne/cm; (18)Density: 1.74 g/cm³; (19)Flash Point: 108.7 °C; (20)Enthalpy of Vaporization: 47.37 kJ/mol; (21)Boiling Point: 256.2 °C at 760 mmHg; (22)Vapour Pressure: 0.0251 mmHg at 25°C.

Uses of the Thiophene,3,4-dichloro-, 1,1-dioxide: It could react with 2,5-dimethyl-furan to obtain the 1-(4,5-dichloro-2-methyl-phenyl)-propan-2-one. This reaction needs the time 0.5 hour and the temperature 93 °C. The yield is about 77 %.

You can still convert the following datas into molecular structure: 
1.SMILES: Cl/C1=C/S(=O)(=O)/C=C1/Cl
2.InChI: InChI=1/C4H2Cl2O2S/c5-3-1-9(7,8)2-4(3)6/h1-2H
3.InChIKey: CIDAIMONSYOOGS-UHFFFAOYAH

The toxicity data is as follows: