17881-25-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17881-25-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,8,8 and 1 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 17881-25:
(7*1)+(6*7)+(5*8)+(4*8)+(3*1)+(2*2)+(1*5)=133
133 % 10 = 3
So 17881-25-3 is a valid CAS Registry Number.