19898-05-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19898-05-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,8,9 and 8 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 19898-05:
(7*1)+(6*9)+(5*8)+(4*9)+(3*8)+(2*0)+(1*5)=166
166 % 10 = 6
So 19898-05-6 is a valid CAS Registry Number.