169888-53-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 169888-53-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,9,8,8 and 8 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 169888-53:
(8*1)+(7*6)+(6*9)+(5*8)+(4*8)+(3*8)+(2*5)+(1*3)=213
213 % 10 = 3
So 169888-53-3 is a valid CAS Registry Number.