The IUPAC name of this chemical is Cyclobutanecarbonyl chloride. With the CAS registry number 5006-22-4 and EINECS registry number 225-680-8, it is also named as cyclobutanecarboxylic acid chloride. In addition, the molecular formula is C₅H₇ClO and the molecular weight is 118.56. It is a kind of clear colourless liquid and belongs to the class of Cycloalkanes. And it should be stored in a airtight, cool and dry place.

Physical properties about this chemical are: (1)ACD/LogP: 1.39; (2)ACD/LogD (pH 5.5): 1.39; (3)ACD/LogD (pH 7.4): 1.39; (4)ACD/BCF (pH 5.5): 6.68; (5)ACD/BCF (pH 7.4): 6.68; (6)ACD/KOC (pH 5.5): 135.59; (7)ACD/KOC (pH 7.4): 135.59; (8)#H bond acceptors: 1; (9)#Freely Rotating Bonds: 1; (10)Polar Surface Area: 17.07 Å²; (11)Index of Refraction: 1.485; (12)Molar Refractivity: 27.86 cm³; (13)Molar Volume: 97.1 cm³; (14)Polarizability: 11.04 ×10^-24cm³; (15)Surface Tension: 39 dyne/cm; (16)Density: 1.22 g/cm³; (17)Flash Point: 42.5 °C; (18)Enthalpy of Vaporization: 37.22 kJ/mol; (19)Boiling Point: 134.7 °C at 760 mmHg; (20)Vapour Pressure: 7.98 mmHg at 25°C.

Uses of Cyclobutanecarbonyl chloride: it can react with benzothiazol-2-ylamine to get cyclobutanecarboxylic acid benzothiazol-2-ylamide. This reaction will need reagent NEt₃ and solvent tetrahydrofuran. The reaction time is 4 hours with ambient temperature. The yield is about 70%.

When you are using this chemical, please be cautious about it as the following:
This chemical is flammable and can cause burns. 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. And in case of accident or if you feel unwell, seek medical advice immediately (show label where possible). What's more, you should keep it away from sources of ignition and no smoking.

You can still convert the following datas into molecular structure:
(1)SMILES: ClC(=O)C1CCC1
(2)InChI: InChI=1/C5H7ClO/c6-5(7)4-2-1-3-4/h4H,1-3H2
(3)InChIKey: JFWMYCVMQSLLOO-UHFFFAOYAU