The CAS register number of Thiophene,2-(methylsulfonyl)- is 38695-60-2. It also can be called as Methyl thien-2-yl sulfone and the systematic name about this chemical is 2-(methylsulfonyl)thiophene. The molecular formula about this chemical is C₅H₆O₂S₂ and the molecular weight is 162.23.

Physical properties about Thiophene,2-(methylsulfonyl)- are: (1)ACD/LogP: 0.38; (2)#H bond acceptors: 2; (3)#Freely Rotating Bonds: 1; (4)Polar Surface Area: 70.76 Å²; (5)Index of Refraction: 1.548; (6)Molar Refractivity: 38.33 cm³; (7)Molar Volume: 120.6 cm³; (8)Polarizability: 15.19x10^-24cm³; (9)Surface Tension: 42.5 dyne/cm; (10)Density: 1.344 g/cm³; (11)Flash Point: 148.4 °C; (12)Enthalpy of Vaporization: 54.12 kJ/mol; (13)Boiling Point: 321.8 °C at 760 mmHg; (14)Vapour Pressure: 0.000547 mmHg at 25 °C.

When you are using this chemical, please be cautious about it as the following:
This chemical is irritating to eyes, respiratory system and skin. If you want to use it, wear suitable protective clothing, gloves and eye/face protection. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. If you want to store it, you should keep the container tightly sealed in dry, cool places. If you store and use this chemical according the rule, it will not be decomposed.

You can still convert the following datas into molecular structure:
(1)SMILES: O=S(=O)(c1sccc1)C
(2)InChI: InChI=1/C5H6O2S2/c1-9(6,7)5-3-2-4-8-5/h2-4H,1H3
(3)InChIKey: BNYLGFINMVZZGA-UHFFFAOYAD
(4)Std. InChI: InChI=1S/C5H6O2S2/c1-9(6,7)5-3-2-4-8-5/h2-4H,1H3
(5)Std. InChIKey: BNYLGFINMVZZGA-UHFFFAOYSA-N