54550-18-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54550-18-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,5,5 and 0 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 54550-18:
(7*5)+(6*4)+(5*5)+(4*5)+(3*0)+(2*1)+(1*8)=114
114 % 10 = 4
So 54550-18-4 is a valid CAS Registry Number.