54145-78-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54145-78-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,1,4 and 5 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 54145-78:
(7*5)+(6*4)+(5*1)+(4*4)+(3*5)+(2*7)+(1*8)=117
117 % 10 = 7
So 54145-78-7 is a valid CAS Registry Number.