745-23-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 745-23-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,4 and 5 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 745-23:
(5*7)+(4*4)+(3*5)+(2*2)+(1*3)=73
73 % 10 = 3
So 745-23-3 is a valid CAS Registry Number.