680208-87-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 680208-87-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,0,2,0 and 8 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 680208-87:
(8*6)+(7*8)+(6*0)+(5*2)+(4*0)+(3*8)+(2*8)+(1*7)=161
161 % 10 = 1
So 680208-87-1 is a valid CAS Registry Number.