205931-22-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 205931-22-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,5,9,3 and 1 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 205931-22:
(8*2)+(7*0)+(6*5)+(5*9)+(4*3)+(3*1)+(2*2)+(1*2)=112
112 % 10 = 2
So 205931-22-2 is a valid CAS Registry Number.