13557-05-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13557-05-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,5,5 and 7 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 13557-05:
(7*1)+(6*3)+(5*5)+(4*5)+(3*7)+(2*0)+(1*5)=96
96 % 10 = 6
So 13557-05-6 is a valid CAS Registry Number.