55509-30-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55509-30-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,5,0 and 9 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 55509-30:
(7*5)+(6*5)+(5*5)+(4*0)+(3*9)+(2*3)+(1*0)=123
123 % 10 = 3
So 55509-30-3 is a valid CAS Registry Number.