13657-60-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13657-60-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,6,5 and 7 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 13657-60:
(7*1)+(6*3)+(5*6)+(4*5)+(3*7)+(2*6)+(1*0)=108
108 % 10 = 8
So 13657-60-8 is a valid CAS Registry Number.