The Acetyl chloride,2-(chlorosulfonyl)-, with the CAS registry number 4025-77-8, is also known as Acetyl chloride, (chlorosulfonyl)-. It belongs to the product categories of Organics; Organic Building Blocks; Sulfonyl Halides; Sulfur Compounds. Its EINECS registry number is 4025-77-8. This chemical's molecular formula is C₂H₂Cl₂O₃S and molecular weight is 177.0065. What's more, its IUPAC name is 2-Chlorosulfonylacetyl chloride. 

Physical properties about Acetyl chloride,2-(chlorosulfonyl)- are: (1)ACD/LogP: 0.62; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.62; (4)ACD/LogD (pH 7.4): 0.62; (5)ACD/BCF (pH 5.5): 1.73; (6)ACD/BCF (pH 7.4): 1.73; (7)ACD/KOC (pH 5.5): 51.5; (8)ACD/KOC (pH 7.4): 51.5; (9)#H bond acceptors: 3; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 2; (12)Polar Surface Area: 59.59 Å²; (13)Index of Refraction: 1.495; (14)Molar Refractivity: 29.9 cm³; (15)Molar Volume: 102.4 cm³; (16)Polarizability: 11.85×10^-24cm³; (17)Surface Tension: 53.2 dyne/cm; (18)Density: 1.727 g/cm³; (19)Flash Point: 93.5 °C; (20)Enthalpy of Vaporization: 47.94 kJ/mol; (21)Boiling Point: 242.4 °C at 760 mmHg; (22)Vapour Pressure: 0.034 mmHg at 25 °C.

When you are using this chemical, please be cautious about it as the following:
As a chemical, it is irritating to eyes, respiratory system. Besides, this chemical reacts violently with water. During using it, wear suitable protective clothing, gloves and eye/face protection. In case of contact with eyes or skin, rinse immediately with plenty of water and seek medical advice. Besides, in case of accident or if you feel unwell seek medical advice immediately (show the label where possible). In addition, this chemical is highly flammable, and it may catch fire in contact with an ignition source. Hence, it should be stored in airtight containers and placed in a dry, cool place. What's more, it should avoid contacting with strong oxidizer, water, metal, acid and alkali, alcohol, amine.

You can still convert the following datas into molecular structure:
(1) SMILES: ClC(=O)CS(Cl)(=O)=O
(2) InChI: InChI=1/C2H2Cl2O3S/c3-2(5)1-8(4,6)7/h1H2
(3) InChIKey: MCFSNYMQISXQTF-UHFFFAOYAO