17531-31-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17531-31-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,5,3 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 17531-31:
(7*1)+(6*7)+(5*5)+(4*3)+(3*1)+(2*3)+(1*1)=96
96 % 10 = 6
So 17531-31-6 is a valid CAS Registry Number.