55243-09-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55243-09-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,2,4 and 3 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 55243-09:
(7*5)+(6*5)+(5*2)+(4*4)+(3*3)+(2*0)+(1*9)=109
109 % 10 = 9
So 55243-09-9 is a valid CAS Registry Number.