53988-89-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 53988-89-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,9,8 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 53988-89:
(7*5)+(6*3)+(5*9)+(4*8)+(3*8)+(2*8)+(1*9)=179
179 % 10 = 9
So 53988-89-9 is a valid CAS Registry Number.