15289-81-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 15289-81-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,2,8 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 15289-81:
(7*1)+(6*5)+(5*2)+(4*8)+(3*9)+(2*8)+(1*1)=123
123 % 10 = 3
So 15289-81-3 is a valid CAS Registry Number.