21162-73-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21162-73-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,1,6 and 2 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 21162-73:
(7*2)+(6*1)+(5*1)+(4*6)+(3*2)+(2*7)+(1*3)=72
72 % 10 = 2
So 21162-73-2 is a valid CAS Registry Number.