421-90-9 Usage
Uses
Used in Firefighting Industry:
1,2,2-Tribromo-3,3,3-trifluoropropane is used as a fire extinguishing agent for its ability to effectively control fires in environments where water or other extinguishing agents may not be suitable or could pose a risk. Its unique properties make it a valuable resource in specific firefighting applications, despite the need for strict regulation due to its ozone-depleting potential.
Due to its classification as a powerful ozone-depleting substance, the production and use of 1,2,2-tribromo-3,3,3-trifluoropropane are heavily restricted under the Montreal Protocol. As a result, there is an ongoing search for alternative fire extinguishing agents that have a lower environmental impact but can still provide the necessary effectiveness in fire safety measures.
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 academic research and scientific papers
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.
