12513-42-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 12513-42-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,5,1 and 3 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 12513-42:
(7*1)+(6*2)+(5*5)+(4*1)+(3*3)+(2*4)+(1*2)=67
67 % 10 = 7
So 12513-42-7 is a valid CAS Registry Number.