17515-22-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17515-22-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,5,1 and 5 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 17515-22:
(7*1)+(6*7)+(5*5)+(4*1)+(3*5)+(2*2)+(1*2)=99
99 % 10 = 9
So 17515-22-9 is a valid CAS Registry Number.