120191-90-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 120191-90-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,0,1,9 and 1 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 120191-90:
(8*1)+(7*2)+(6*0)+(5*1)+(4*9)+(3*1)+(2*9)+(1*0)=84
84 % 10 = 4
So 120191-90-4 is a valid CAS Registry Number.