861616-49-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 861616-49-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,1,6,1 and 6 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 861616-49:
(8*8)+(7*6)+(6*1)+(5*6)+(4*1)+(3*6)+(2*4)+(1*9)=181
181 % 10 = 1
So 861616-49-1 is a valid CAS Registry Number.