257289-35-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 257289-35-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,7,2,8 and 9 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 257289-35:
(8*2)+(7*5)+(6*7)+(5*2)+(4*8)+(3*9)+(2*3)+(1*5)=173
173 % 10 = 3
So 257289-35-3 is a valid CAS Registry Number.