117257-90-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117257-90-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,2,5 and 7 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 117257-90:
(8*1)+(7*1)+(6*7)+(5*2)+(4*5)+(3*7)+(2*9)+(1*0)=126
126 % 10 = 6
So 117257-90-6 is a valid CAS Registry Number.