1020539-22-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1020539-22-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,0,5,3 and 9 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1020539-22:
(9*1)+(8*0)+(7*2)+(6*0)+(5*5)+(4*3)+(3*9)+(2*2)+(1*2)=93
93 % 10 = 3
So 1020539-22-3 is a valid CAS Registry Number.