421-90-9 Usage
General Description
1,2,2-Tribromo-3,3,3-trifluoropropane is a chemical compound with the molecular formula C3H3Br3F3. It is a colorless liquid with a pungent odor and is primarily used as a fire extinguishing agent, particularly in situations where water or other traditional extinguishing agents may be ineffective or dangerous. It is classified as a halogenated hydrocarbon, and its structure consists of three bromine atoms and three fluorine atoms attached to a three-carbon propane backbone. 1,2,2-TRIBROMO-3,3,3-TRIFLUOROPROPANE is a powerful ozone-depleting substance and is regulated under the Montreal Protocol due to its potential to harm the Earth's ozone layer. Its production and use are restricted, and alternatives with lower environmental impact are actively sought in its place.
Check Digit Verification of cas no
The CAS Registry Mumber 421-90-9 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 1 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 421-90:
(5*4)+(4*2)+(3*1)+(2*9)+(1*0)=49
49 % 10 = 9
So 421-90-9 is a valid CAS Registry Number.
InChI:InChI=1/C3H2Br3F3/c4-1-2(5,6)3(7,8)9/h1H2
421-90-9Relevant articles and documents
Synthesis of ethyl 3,3,3-trifluoropropionate from 2-bromo-3,3,3-trifluoropropene Dedicated to Dr. Teruo Umemoto on the occasion of his receipt of the ACS Award for Creative Work in Fluorine Chemistry 2014.
Inoue, Munenori,Shiosaki, Masahiro,Muramaru, Hajime
, p. 135 - 138 (2015/03/04)
A facile synthesis of ethyl 3,3,3-trifluoropropionate is described. Commercially available 2-bromo-3,3,3-trifluoropropene was used as a starting material, which was allowed to react with bromine to produce 2,2,3-tribromo-1,1,1-trifluoropropane. The resulting tribromide was treated with 3 equiv. of potassium ethoxide, giving rise to ethyl 3,3,3-trifluoropropionate in 60% overall yield in 2 steps. The reaction proceeded via an alkoxide-induced tandem reaction mechanism.
