55389-88-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55389-88-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,3,8 and 9 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 55389-88:
(7*5)+(6*5)+(5*3)+(4*8)+(3*9)+(2*8)+(1*8)=163
163 % 10 = 3
So 55389-88-3 is a valid CAS Registry Number.