22505-39-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22505-39-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,5,0 and 5 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 22505-39:
(7*2)+(6*2)+(5*5)+(4*0)+(3*5)+(2*3)+(1*9)=81
81 % 10 = 1
So 22505-39-1 is a valid CAS Registry Number.