223473-57-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 223473-57-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,4,7 and 3 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 223473-57:
(8*2)+(7*2)+(6*3)+(5*4)+(4*7)+(3*3)+(2*5)+(1*7)=122
122 % 10 = 2
So 223473-57-2 is a valid CAS Registry Number.