56889-43-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56889-43-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,8,8 and 9 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 56889-43:
(7*5)+(6*6)+(5*8)+(4*8)+(3*9)+(2*4)+(1*3)=181
181 % 10 = 1
So 56889-43-1 is a valid CAS Registry Number.