54911-87-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54911-87-4 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, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 54911-87:
(7*5)+(6*4)+(5*9)+(4*1)+(3*1)+(2*8)+(1*7)=134
134 % 10 = 4
So 54911-87-4 is a valid CAS Registry Number.