680618-25-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 680618-25-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,0,6,1 and 8 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 680618-25:
(8*6)+(7*8)+(6*0)+(5*6)+(4*1)+(3*8)+(2*2)+(1*5)=171
171 % 10 = 1
So 680618-25-1 is a valid CAS Registry Number.