55818-14-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55818-14-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,8,1 and 8 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 55818-14:
(7*5)+(6*5)+(5*8)+(4*1)+(3*8)+(2*1)+(1*4)=139
139 % 10 = 9
So 55818-14-9 is a valid CAS Registry Number.