109489-65-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109489-65-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,4,8 and 9 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 109489-65:
(8*1)+(7*0)+(6*9)+(5*4)+(4*8)+(3*9)+(2*6)+(1*5)=158
158 % 10 = 8
So 109489-65-8 is a valid CAS Registry Number.