169749-98-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 169749-98-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,9,7,4 and 9 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 169749-98:
(8*1)+(7*6)+(6*9)+(5*7)+(4*4)+(3*9)+(2*9)+(1*8)=208
208 % 10 = 8
So 169749-98-8 is a valid CAS Registry Number.