The Trimethylsilyl chlorosulphate, with the CAS registry number of 4353-77-9, is also known as Chloridosulfuric acid trimethylsilyl ester. It belongs to the product categories of Organic Building Blocks; Sulfonates/Sulfinates; Sulfur Compounds. Its EINECS registry number is 224-425-8. This chemical's molecular formula is C₃H₉ClO₃SSi and molecular weight is 188.71. What's more, its IUPAC name is [Chlorosulfonyloxy(dimethyl)silyl]methane. In addition, it must be stored in airtight containers filled with inert gases and placed in a dry, cool place. Meanwhile, it should be avoided contact with light, strong oxidant, high temperature, ignition source.

Physical properties about Trimethylsilyl chlorosulphate are: (1)ACD/LogP: 2.02; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 2.02; (4)ACD/LogD (pH 7.4): 2.02; (5)ACD/BCF (pH 5.5): 20.21; (6)ACD/BCF (pH 7.4): 20.21; (7)ACD/KOC (pH 5.5): 299.27; (8)ACD/KOC (pH 7.4): 299.27; (9)#H bond acceptors: 3; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 2; (12)Polar Surface Area: 51.75 Å²; (13)Index of Refraction: 1.438; (14)Molar Refractivity: 40.07 cm³; (15)Molar Volume: 152.5 cm³; (16)Surface Tension: 28.3 dyne/cm; (17)Density: 1.236 g/cm³; (18)Flash Point: 51 °C; (19)Enthalpy of Vaporization: 38.88 kJ/mol; (20)Boiling Point: 169 °C at 760 mmHg; (21)Vapour Pressure: 2.09 mmHg at 25 °C.

Preparation: this chemical is prepared by Chloro-trimethyl-silane. The reaction needs reagent Sulfur trioxide. Other condition of this reaction is reaction time of 10 minutes at 50 °C. The yield is about 87 %.

Uses: it is used to produce other chemicals. For example, it is used to produce 4-Isopropyl-1-benzolsulfonsaeure-trimethylsilylester. The reaction needs solvent 1, 2-Dichloro-ethane. The reaction time is 10 hours with reaction temperature of 80 °C. The yield is about 75 %.

When you are using this chemical, please be cautious about it as the following:
This chemical may cause burns on contact. During using 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. Besides, this chemical is flammable.

You can still convert the following datas into molecular structure:
(1) SMILES: ClS(=O)(=O)O[Si](C)(C)C
(2) InChI: InChI=1/C3H9ClO3SSi/c1-9(2,3)7-8(4,5)6/h1-3H3
(3) InChIKey: QWQONZVLXJGXHV-UHFFFAOYAE