20919-97-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20919-97-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,9,1 and 9 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 20919-97:
(7*2)+(6*0)+(5*9)+(4*1)+(3*9)+(2*9)+(1*7)=115
115 % 10 = 5
So 20919-97-5 is a valid CAS Registry Number.
InChI:InChI=1/C4H6N4O8/c1-3(5(9)10,6(11)12)4(2,7(13)14)8(15)16/h1-2H3
20919-97-5Relevant academic research and scientific papers
Disruptive nitration of polynitrocarbonyl compounds: IV. Synthesis of α,α,β,β-tetranitro compounds
Stepanova,Golod
, p. 1246 - 1251 (2007/10/03)
Nitration of β-methyl-γ,γ-dinitro ketones yields compounds containing two vicinal dinitromethylene groups, 2,2,3,3-tetranitrobutane and 3,3,4,4-tetranitropentanoic acid. The latter was used to prepare 3,3,4,4-tetranitropentylamine, 3,3,4,4-tetranitropentanol, and their derivatives.
