257299-92-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 257299-92-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,7,2,9 and 9 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 257299-92:
(8*2)+(7*5)+(6*7)+(5*2)+(4*9)+(3*9)+(2*9)+(1*2)=186
186 % 10 = 6
So 257299-92-6 is a valid CAS Registry Number.