28317-59-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28317-59-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,3,1 and 7 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 28317-59:
(7*2)+(6*8)+(5*3)+(4*1)+(3*7)+(2*5)+(1*9)=121
121 % 10 = 1
So 28317-59-1 is a valid CAS Registry Number.