421-46-5 Usage
General Description
2-Bromo-1,1,1-trifluoropropane is a chemical compound with the molecular formula C3H3BrF3. It is a colorless, non-flammable liquid with a faint odor, and it is primarily used as a solvent, refrigerant, and blowing agent in the production of foam plastics. It is also used as a cleaning agent and as a propellant in aerosol applications. 2-Bromo-1,1,1-trifluoropropane is considered to have potential as an ozone-depleting substance and has been targeted for phase-out under the Montreal Protocol due to its negative impact on the environment and the ozone layer. As a result, its production and use are being gradually phased out in many countries.
Check Digit Verification of cas no
The CAS Registry Mumber 421-46-5 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 1 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 421-46:
(5*4)+(4*2)+(3*1)+(2*4)+(1*6)=45
45 % 10 = 5
So 421-46-5 is a valid CAS Registry Number.
421-46-5Relevant articles and documents
Structural Effects on the Transition States of Imine-Forming Eliminations in N-Substituted O-(Arylsulfonyl)hydroxylamines
Hoffman, Robert V.,Shankweiler, Jean M.
, p. 4019 - 4022 (2007/10/02)
A series of amines with various alkyl and aryl substituents at C-1 were converted to the corresponding N-(arylsulfonoxy)amines, which served as precursors for base-promoted, imine-forming elimination.By varying the bases used to promote the elimination and by varying the leaving groups attached to nitrogen, the Broensted parameters β and βlgCH3 were determined.These were used to locate the transition state on the More O'Ferrall-Jencks energy surface for elimination.Substituents were found to influence the structure of the activated complex markedly.Resonance effects were most important, while inductive effects had little influence .