The molecular structure of 3-(Trifluoromethyl)benzenesulfonyl chloride (CAS NO.777-44-6) is
.
Molecular Formula: C₇H₄ClF₃O₂S
Molecular Weight: 244.61
Density: 1.532 g/cm³
Boiling Point: 261.1 °C at 760 mmHg
Freely Rotating Bonds: 1
Polar Surface Area: 42.52 Å²
Index of Refraction: 1.48
Molar Refractivity: 45.39 cm³
Molar Volume: 159.5 cm³
Polarizability: 17.99 ×10^-24 cm³
Surface Tension: 33.5 dyne/cm
Flash Point: 111.7 °C
Enthalpy of Vaporization: 47.87 kJ/mol
Vapour Pressure: 0.0191 mmHg at 25 °C 
Sensitive: moisture sensitive 
Properties: clear pale yellow to brown liquid
Product categories: Fluorobenzene ; Benzenesulfonyl chloride ; Miscellaneous ; Organic Building Blocks ; Sulfonyl Halides ; Sulfur Compounds .

 3-(Trifluoromethyl)benzenesulfonyl chloride (CAS NO.777-44-6) is used as organic reagents, pharmaceutical intermediates.

Hazard Codes: C
Risk Statements: 34
R34: Causes burns. 
Safety Statements: 26-36/37/39-45-25 
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.) 
S25: Avoid contact with eyes.
RIDADR: UN 3265 8/PG 2
WGK Germany: 3
F: 10-21
Hazard Note: Corrosive/Moisture Sensitive
HazardClass: 8
PackingGroup: II

 The Cas Register Number  of 3-(Trifluoromethyl)benzenesulfonyl chloride is 777-44-6. The chemical synonyms of 3-(Trifluoromethyl)benzenesulfonyl chloride (CAS NO.777-44-6) are Benzenesulfonyl chloride, 3-(trifluoromethyl)- ; Alpha,alpha,alpha-trifluorotoluene-3-sulfonyl chloride ; 3-(Trifluoromethyl)benzene-1-sulfonyl chloride ; 3-Trifluoromethylbenzenesulfochloride ; 3-(Trifluoromethyl)benzenesulfonyl chloride ; 3-(Trifluoromethyl)benzenesulphonyl chloride ; M-Trifluoromethylbenzenesulfonyl chloride ; 3-Trifluoromethyl-1-sulfonyl chloride .