25690-19-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25690-19-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,6,9 and 0 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 25690-19:
(7*2)+(6*5)+(5*6)+(4*9)+(3*0)+(2*1)+(1*9)=121
121 % 10 = 1
So 25690-19-1 is a valid CAS Registry Number.