55889-34-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55889-34-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,8,8 and 9 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 55889-34:
(7*5)+(6*5)+(5*8)+(4*8)+(3*9)+(2*3)+(1*4)=174
174 % 10 = 4
So 55889-34-4 is a valid CAS Registry Number.