101109-20-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 101109-20-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,1,1,0 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 101109-20:
(8*1)+(7*0)+(6*1)+(5*1)+(4*0)+(3*9)+(2*2)+(1*0)=50
50 % 10 = 0
So 101109-20-0 is a valid CAS Registry Number.