1H,3H/2H-Heptafluorcyclopentan, also known as 1,3-dihydro-2H-heptafluorocylopentane, is a halogenated cycloalkane with the molecular formula C5H2F7. It is a colorless liquid at room temperature and is characterized by its highly fluorinated cyclic structure. 1H,3H/2H-Heptafluorcyclopentan is synthesized by the addition of hydrogen fluoride (HF) to tetrafluoroethylene (C2F4), followed by hydrogenation. Due to its unique properties, such as chemical stability, low reactivity, and high thermal stability, 1H,3H/2H-heptafluorocylopentan finds applications in various fields, including the production of fluoropolymers, as a solvent in certain chemical processes, and as a refrigerant in specialized applications. Its handling requires careful consideration due to its potential environmental and health impacts, and it is subject to regulatory controls.
The CAS Registry Mumber 1765-23-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,6 and 5 respectively; the second part has 2 digits, 2 and 3 respectively. Calculate Digit Verification of CAS Registry Number 1765-23: (6*1)+(5*7)+(4*6)+(3*5)+(2*2)+(1*3)=87 87 % 10 = 7 So 1765-23-7 is a valid CAS Registry Number.