68513-93-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 68513-93-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,5,1 and 3 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 68513-93:
(7*6)+(6*8)+(5*5)+(4*1)+(3*3)+(2*9)+(1*3)=149
149 % 10 = 9
So 68513-93-9 is a valid CAS Registry Number.