205259-20-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 205259-20-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,5,2,5 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 205259-20:
(8*2)+(7*0)+(6*5)+(5*2)+(4*5)+(3*9)+(2*2)+(1*0)=107
107 % 10 = 7
So 205259-20-7 is a valid CAS Registry Number.