861791-83-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 861791-83-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,1,7,9 and 1 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 861791-83:
(8*8)+(7*6)+(6*1)+(5*7)+(4*9)+(3*1)+(2*8)+(1*3)=205
205 % 10 = 5
So 861791-83-5 is a valid CAS Registry Number.