17157-59-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17157-59-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,1,5 and 7 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 17157-59:
(7*1)+(6*7)+(5*1)+(4*5)+(3*7)+(2*5)+(1*9)=114
114 % 10 = 4
So 17157-59-4 is a valid CAS Registry Number.