124553-71-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 124553-71-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,5,5 and 3 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 124553-71:
(8*1)+(7*2)+(6*4)+(5*5)+(4*5)+(3*3)+(2*7)+(1*1)=115
115 % 10 = 5
So 124553-71-5 is a valid CAS Registry Number.
124553-71-5Relevant academic research and scientific papers
FIFTY-TWO MEMBERED MACROMONOCYCLIC POLYAMINE POSSESSING TWELVE NITROGEN ATOMS IN THE RING: CYCLIC SPERMINE TETRAMER
Iwata, Masaaki,Kuzuhara, Hiroyoshi
, p. 1009 - 1014 (2007/10/02)
By the reaction of 1,4-dibromobutane with forty-eight membered acyclic polyamine in the presence of cesium carbonate in DMF, cyclic spermine (or thermospermine) tetramer was prepared in 72percent yield.
