256663-95-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 256663-95-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,6,6 and 3 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 256663-95:
(8*2)+(7*5)+(6*6)+(5*6)+(4*6)+(3*3)+(2*9)+(1*5)=173
173 % 10 = 3
So 256663-95-3 is a valid CAS Registry Number.