54911-18-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54911-18-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,9,1 and 1 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 54911-18:
(7*5)+(6*4)+(5*9)+(4*1)+(3*1)+(2*1)+(1*8)=121
121 % 10 = 1
So 54911-18-1 is a valid CAS Registry Number.