197525-02-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 197525-02-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,5,2 and 5 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 197525-02:
(8*1)+(7*9)+(6*7)+(5*5)+(4*2)+(3*5)+(2*0)+(1*2)=163
163 % 10 = 3
So 197525-02-3 is a valid CAS Registry Number.
197525-02-3Relevant articles and documents
Synthesis of polymethoxy-substituted triazolobenzoxazepines
Bukhvalova, S. Yu.,Ivanov,Malysheva, Yu. B.,Fedorov, A. Yu.
, p. 1481 - 1489 (2016)
A new approach has been proposed for the synthesis of polymethoxy-substituted [1,2,3]triazolo-[1,5-a][4,1]benzoxazepines starting from 2-bromo-4,5-dimethoxy- and 2-bromo-3,4,5-dimethoxybenzyl alcohols with thermal [3 + 2]-dipolar cycloaddition as the key stage.
