745717-45-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 745717-45-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,5,7,1 and 7 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 745717-45:
(8*7)+(7*4)+(6*5)+(5*7)+(4*1)+(3*7)+(2*4)+(1*5)=187
187 % 10 = 7
So 745717-45-7 is a valid CAS Registry Number.