68105-69-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 68105-69-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,1,0 and 5 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 68105-69:
(7*6)+(6*8)+(5*1)+(4*0)+(3*5)+(2*6)+(1*9)=131
131 % 10 = 1
So 68105-69-1 is a valid CAS Registry Number.