13728-15-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13728-15-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,7,2 and 8 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 13728-15:
(7*1)+(6*3)+(5*7)+(4*2)+(3*8)+(2*1)+(1*5)=99
99 % 10 = 9
So 13728-15-9 is a valid CAS Registry Number.