55439-78-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55439-78-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,4,3 and 9 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 55439-78:
(7*5)+(6*5)+(5*4)+(4*3)+(3*9)+(2*7)+(1*8)=146
146 % 10 = 6
So 55439-78-6 is a valid CAS Registry Number.