25004-90-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25004-90-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,0,0 and 4 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 25004-90:
(7*2)+(6*5)+(5*0)+(4*0)+(3*4)+(2*9)+(1*0)=74
74 % 10 = 4
So 25004-90-4 is a valid CAS Registry Number.