109908-50-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109908-50-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,9,0 and 8 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 109908-50:
(8*1)+(7*0)+(6*9)+(5*9)+(4*0)+(3*8)+(2*5)+(1*0)=141
141 % 10 = 1
So 109908-50-1 is a valid CAS Registry Number.