25554-69-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25554-69-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,5,5 and 4 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 25554-69:
(7*2)+(6*5)+(5*5)+(4*5)+(3*4)+(2*6)+(1*9)=122
122 % 10 = 2
So 25554-69-2 is a valid CAS Registry Number.