55818-61-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55818-61-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,8,1 and 8 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 55818-61:
(7*5)+(6*5)+(5*8)+(4*1)+(3*8)+(2*6)+(1*1)=146
146 % 10 = 6
So 55818-61-6 is a valid CAS Registry Number.