116743-80-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 116743-80-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,6,7,4 and 3 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 116743-80:
(8*1)+(7*1)+(6*6)+(5*7)+(4*4)+(3*3)+(2*8)+(1*0)=127
127 % 10 = 7
So 116743-80-7 is a valid CAS Registry Number.
116743-80-7Relevant articles and documents
The preparation of new isoflavones
Sepulveda-Boza,Walizei,Rezende,Vasquez,Mascayano,Mejias
, p. 1933 - 1940 (2001)
The synthesis of ten new isoflavones in good yield is described. The method, involving intermediate 2-hydroxybenzyl ketones, did not require protection of the hydroxyl groups of the starting polyphenols.