106989-97-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 106989-97-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,6,9,8 and 9 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 106989-97:
(8*1)+(7*0)+(6*6)+(5*9)+(4*8)+(3*9)+(2*9)+(1*7)=173
173 % 10 = 3
So 106989-97-3 is a valid CAS Registry Number.