68408-99-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 68408-99-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,4,0 and 8 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 68408-99:
(7*6)+(6*8)+(5*4)+(4*0)+(3*8)+(2*9)+(1*9)=161
161 % 10 = 1
So 68408-99-1 is a valid CAS Registry Number.