56839-46-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56839-46-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,8,3 and 9 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 56839-46:
(7*5)+(6*6)+(5*8)+(4*3)+(3*9)+(2*4)+(1*6)=164
164 % 10 = 4
So 56839-46-4 is a valid CAS Registry Number.