681259-17-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 681259-17-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,1,2,5 and 9 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 681259-17:
(8*6)+(7*8)+(6*1)+(5*2)+(4*5)+(3*9)+(2*1)+(1*7)=176
176 % 10 = 6
So 681259-17-6 is a valid CAS Registry Number.