13524-31-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13524-31-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,5,2 and 4 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 13524-31:
(7*1)+(6*3)+(5*5)+(4*2)+(3*4)+(2*3)+(1*1)=77
77 % 10 = 7
So 13524-31-7 is a valid CAS Registry Number.