257929-17-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 257929-17-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,7,9,2 and 9 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 257929-17:
(8*2)+(7*5)+(6*7)+(5*9)+(4*2)+(3*9)+(2*1)+(1*7)=182
182 % 10 = 2
So 257929-17-2 is a valid CAS Registry Number.