IUPAC Name: 2-(Trifluoromethoxy)benzenesulfonyl chloride 
Following is the structure of 2-(Trifluoromethoxy)benzenesulfonyl chloride (CAS NO.103008-51-1):
                         
Empirical Formula: C₇H₄ClF₃O₃S
Molecular Weight: 260.6181 g/mol
Molar Refractivity: 47.13 cm³
Molar Volume: 166.4 cm³
Density: 1.565 g/cm³
Flash Point: 112.3 °C
Index of Refraction: 1.478
Melting point: 27-31 °C
Surface Tension: 34.8 dyne/cm
Enthalpy of Vaporization: 47.96 kJ/mol
Boiling Point: 262 °C at 760 mmHg
Vapour Pressure: 0.0182 mmHg at 25 °C
Product Categories of 2-(Trifluoromethoxy)benzenesulfonyl chloride (CAS NO.103008-51-1): Fluorobenzene; Benzenesulfonyl chloride; Miscellaneous; Organic Building Blocks; Sulfonyl Halides; Sulfur Compounds
Sensitive of 2-(Trifluoromethoxy)benzenesulfonyl chloride (CAS NO.103008-51-1): Moisture Sensitive
Canonical SMILES: C1=CC=C(C(=C1)OC(F)(F)F)S(=O)(=O)Cl
InChI: InChI=1S/C7H4ClF3O3S/c8-15(12,13)6-4-2-1-3-5(6)14-7(9,10)11/h1-4H
InChIKey: JLTBWYIUMFEOTN-UHFFFAOYSA-N

Hazard Codes: C
Risk Statements: 34 
R34:Causes burns.
Safety Statements: 26-36/37/39-45-39-37-36 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S39:Wear eye / face protection. 
S37:Wear suitable gloves. 
S36:Wear suitable protective clothing.
RIDADR: UN 3261 8/PG 2
WGK Germany: 3
Hazard Note: Corrosive
HazardClass: 8
PackingGroup: II
Transport Information: UN 3261

 2-(Trifluoromethoxy)benzenesulfonyl chloride , its cas register number is 103008-51-1. It also can be called 2-(Trifluoromethoxy)benzene-1-sulfonyl chloride .