251921-44-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 251921-44-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,1,9,2 and 1 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 251921-44:
(8*2)+(7*5)+(6*1)+(5*9)+(4*2)+(3*1)+(2*4)+(1*4)=125
125 % 10 = 5
So 251921-44-5 is a valid CAS Registry Number.