420-43-9 Usage
General Description
1-Bromo-1,1-difluoroethane is a volatile organic compound with the chemical formula C2H3BrF2. It is a colorless, flammable gas that is used in a variety of industrial applications, including as a refrigerant and as a propellant in aerosol cans. It is also used as a solvent in cleaning and degreasing products. However, 1-Bromo-1,1-difluoroethane is considered harmful if inhaled and can cause irritation to the respiratory system, skin, and eyes. It is also considered a potential environmental hazard due to its contribution to ozone depletion. As a result, its use is becoming more restricted and regulated.
Check Digit Verification of cas no
The CAS Registry Mumber 420-43-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,2 and 0 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 420-43:
(5*4)+(4*2)+(3*0)+(2*4)+(1*3)=39
39 % 10 = 9
So 420-43-9 is a valid CAS Registry Number.
InChI:InChI=1/C2H3BrF2/c1-2(3,4)5/h1H3
420-43-9Relevant articles and documents
A Convenient Access to 1,1-Difluoroethyl Triflate and Iodide
Marival-Hodebar, Laurence,Tordeux, Marc,Wakselman, Claude
, p. 192 - 193 (1998)
1,1-Difluoroethyl trifiate obtained from 1,1-difluoroethylene and trifluoromethanesulfonic acid is converted into its corresponding iodide by the action of iodide anion in diethyl ketone.
