The Heptafluorobutyryl chloride is an organic compound with the formula C₄ClF₇O. The IUPAC name of this chemical is 2,2,3,3,4,4,4-heptafluorobutanoyl chloride. With the CAS registry number 375-16-6, it is also named as Perfluorobutyryl chloride. Besides, it is used in organic synthesis, which should be stored in a cool, dry place.

Physical properties about Heptafluorobutyryl chloride are: (1)ACD/LogP: 4.68; (2)ACD/LogD (pH 5.5): 4.68; (3)ACD/LogD (pH 7.4): 4.68; (4)ACD/BCF (pH 5.5): 2110.65; (5)ACD/BCF (pH 7.4): 2110.65; (6)ACD/KOC (pH 5.5): 8340.92; (7)ACD/KOC (pH 7.4): 8340.92; (8)#H bond acceptors: 1; (9)#Freely Rotating Bonds: 2; (10)Polar Surface Area: 17.07 Å²; (11)Index of Refraction: 1.3; (12)Molar Refractivity: 26.5 cm³; (13)Molar Volume: 141.3 cm³; (14)Polarizability: 10.5×10^-24cm³; (15)Surface Tension: 16.9 dyne/cm; (16)Density: 1.644 g/cm³; (17)Flash Point: °C; (18)Enthalpy of Vaporization: 28.32 kJ/mol; (19)Boiling Point: 38.5 °C at 760 mmHg; (20)Vapour Pressure: 456 mmHg at 25°C.

Preparation: this chemical can be prepared by Heptafluorobutyric acid. This reaction will need reagent PhCOCl by heating. The yield is about 70%.

Uses of Heptafluorobutyryl chloride: it can be used to produce bis-Heptafluorobutyryl peroxide. It will need reagent Hydrogen peroxide and solvent 1,1,2-Trichloro-1,2,2-trifluoro-ethane.

When you are using this chemical, please be cautious about it as the following:
It is can cause burns. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. When you are using it, wear suitable gloves and eye/face protection. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.