5144-72-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5144-72-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,1,4 and 4 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 5144-72:
(6*5)+(5*1)+(4*4)+(3*4)+(2*7)+(1*2)=79
79 % 10 = 9
So 5144-72-9 is a valid CAS Registry Number.