54475-81-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54475-81-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,4,7 and 5 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 54475-81:
(7*5)+(6*4)+(5*4)+(4*7)+(3*5)+(2*8)+(1*1)=139
139 % 10 = 9
So 54475-81-9 is a valid CAS Registry Number.