25839-18-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25839-18-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,8,3 and 9 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 25839-18:
(7*2)+(6*5)+(5*8)+(4*3)+(3*9)+(2*1)+(1*8)=133
133 % 10 = 3
So 25839-18-3 is a valid CAS Registry Number.