20057-07-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20057-07-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,0,5 and 7 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 20057-07:
(7*2)+(6*0)+(5*0)+(4*5)+(3*7)+(2*0)+(1*7)=62
62 % 10 = 2
So 20057-07-2 is a valid CAS Registry Number.