256489-73-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 256489-73-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,4,8 and 9 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 256489-73:
(8*2)+(7*5)+(6*6)+(5*4)+(4*8)+(3*9)+(2*7)+(1*3)=183
183 % 10 = 3
So 256489-73-3 is a valid CAS Registry Number.