256479-28-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 256479-28-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,4,7 and 9 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 256479-28:
(8*2)+(7*5)+(6*6)+(5*4)+(4*7)+(3*9)+(2*2)+(1*8)=174
174 % 10 = 4
So 256479-28-4 is a valid CAS Registry Number.