The Trifluoromethanesulfonyl chloride, with the CAS registry number 421-83-0 and EINECS registry number 207-009-0, is a kind of lachrymatory chemical with the apperance of clear colorless to faintly colored liquid. And the molecular formula of this chemical is CClF₃O₂S.

The physical properties of Trifluoromethanesulfonyl chloride are as following: (1)ACD/LogP: 1.76; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 1.76; (4)ACD/LogD (pH 7.4): 1.76; (5)ACD/BCF (pH 5.5): 12.77; (6)ACD/BCF (pH 7.4): 12.77; (7)ACD/KOC (pH 5.5): 215.51; (8)ACD/KOC (pH 7.4): 215.51; (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: 1.359; (14)Molar Refractivity: 20.68 cm³; (15)Molar Volume: 93.8 cm³; (16)Polarizability: 8.2×10^-24cm³; (17)Surface Tension: 28.6 dyne/cm; (18)Density: 1.795 g/cm³; (19)Enthalpy of Vaporization: 26.46 kJ/mol; (20)Boiling Point: 30.5 °C at 760 mmHg; (21)Vapour Pressure: 624 mmHg at 25°C.

Uses of Trifluoromethanesulfonyl chloride: It can react with 2-aziridin-1-yl-ethanol to produce 2-(1-aziridinyl)ethyl trifluoromethanesulfonate. This reaction will need reagent sodium hydride, and the solvent tetrahydrofuran. The reaction time is 4 hours with temperature of -80°C, and the yield is about 65%.

You should be cautious while dealing with this chemical. It reacts violently with water, and may also cause burns. Therefore, you had better take the following instructions: Wear suitable protective clothing, gloves and eye/face protection, and in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice; In case of accident or if you feel unwell, seek medical advice immediately (show label where possible).

You can still convert the following datas into molecular structure:
(1)SMILES: FC(F)(F)S(Cl)(=O)=O
(2)InChI: InChI=1/CClF3O2S/c2-8(6,7)1(3,4)5
(3)InChIKey: GRGCWBWNLSTIEN-UHFFFAOYAL