10439-11-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 10439-11-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,0,4,3 and 9 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 10439-11:
(7*1)+(6*0)+(5*4)+(4*3)+(3*9)+(2*1)+(1*1)=69
69 % 10 = 9
So 10439-11-9 is a valid CAS Registry Number.