20733-25-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20733-25-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,7,3 and 3 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 20733-25:
(7*2)+(6*0)+(5*7)+(4*3)+(3*3)+(2*2)+(1*5)=79
79 % 10 = 9
So 20733-25-9 is a valid CAS Registry Number.