256455-97-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 256455-97-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,4,5 and 5 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 256455-97:
(8*2)+(7*5)+(6*6)+(5*4)+(4*5)+(3*5)+(2*9)+(1*7)=167
167 % 10 = 7
So 256455-97-7 is a valid CAS Registry Number.