225917-77-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 225917-77-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,5,9,1 and 7 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 225917-77:
(8*2)+(7*2)+(6*5)+(5*9)+(4*1)+(3*7)+(2*7)+(1*7)=151
151 % 10 = 1
So 225917-77-1 is a valid CAS Registry Number.