51513-81-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 51513-81-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,5,1 and 3 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 51513-81:
(7*5)+(6*1)+(5*5)+(4*1)+(3*3)+(2*8)+(1*1)=96
96 % 10 = 6
So 51513-81-6 is a valid CAS Registry Number.