49789-45-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 49789-45-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,9,7,8 and 9 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 49789-45:
(7*4)+(6*9)+(5*7)+(4*8)+(3*9)+(2*4)+(1*5)=189
189 % 10 = 9
So 49789-45-9 is a valid CAS Registry Number.