2202-73-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2202-73-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,2,0 and 2 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 2202-73:
(6*2)+(5*2)+(4*0)+(3*2)+(2*7)+(1*3)=45
45 % 10 = 5
So 2202-73-5 is a valid CAS Registry Number.