55021-30-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55021-30-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,0,2 and 1 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 55021-30:
(7*5)+(6*5)+(5*0)+(4*2)+(3*1)+(2*3)+(1*0)=82
82 % 10 = 2
So 55021-30-2 is a valid CAS Registry Number.