55305-81-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55305-81-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,3,0 and 5 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 55305-81:
(7*5)+(6*5)+(5*3)+(4*0)+(3*5)+(2*8)+(1*1)=112
112 % 10 = 2
So 55305-81-2 is a valid CAS Registry Number.