1,1,2,2-Tetrachloro-3,3-difluoro-butane is a chlorofluorocarbon (CFC) with the chemical formula C4Cl4F2. It is a colorless, volatile liquid at room temperature and is known for its high stability and low reactivity. 1,1,2,2-tetrachloro-3,3-difluoro-butane was once used as a refrigerant and as a propellant in aerosol products due to its ability to absorb and release heat without undergoing significant chemical change. However, it is now recognized as a potent greenhouse gas and ozone-depleting substance, contributing to global warming and the depletion of the ozone layer. As a result, its production and use have been phased out under international agreements like the Montreal Protocol to protect the environment.
The CAS Registry Mumber 374-36-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 3,7 and 4 respectively; the second part has 2 digits, 3 and 6 respectively. Calculate Digit Verification of CAS Registry Number 374-36: (5*3)+(4*7)+(3*4)+(2*3)+(1*6)=67 67 % 10 = 7 So 374-36-7 is a valid CAS Registry Number.