20567-53-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20567-53-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,5,6 and 7 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 20567-53:
(7*2)+(6*0)+(5*5)+(4*6)+(3*7)+(2*5)+(1*3)=97
97 % 10 = 7
So 20567-53-7 is a valid CAS Registry Number.