256448-98-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 256448-98-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,4,4 and 8 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 256448-98:
(8*2)+(7*5)+(6*6)+(5*4)+(4*4)+(3*8)+(2*9)+(1*8)=173
173 % 10 = 3
So 256448-98-3 is a valid CAS Registry Number.