256427-45-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 256427-45-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,4,2 and 7 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 256427-45:
(8*2)+(7*5)+(6*6)+(5*4)+(4*2)+(3*7)+(2*4)+(1*5)=149
149 % 10 = 9
So 256427-45-9 is a valid CAS Registry Number.