55659-73-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55659-73-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,6,5 and 9 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 55659-73:
(7*5)+(6*5)+(5*6)+(4*5)+(3*9)+(2*7)+(1*3)=159
159 % 10 = 9
So 55659-73-9 is a valid CAS Registry Number.