171898-26-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 171898-26-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,8,9 and 8 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 171898-26:
(8*1)+(7*7)+(6*1)+(5*8)+(4*9)+(3*8)+(2*2)+(1*6)=173
173 % 10 = 3
So 171898-26-3 is a valid CAS Registry Number.