25552-21-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25552-21-0 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 2 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 25552-21:
(7*2)+(6*5)+(5*5)+(4*5)+(3*2)+(2*2)+(1*1)=100
100 % 10 = 0
So 25552-21-0 is a valid CAS Registry Number.