77489-45-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77489-45-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,4,8 and 9 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 77489-45:
(7*7)+(6*7)+(5*4)+(4*8)+(3*9)+(2*4)+(1*5)=183
183 % 10 = 3
So 77489-45-3 is a valid CAS Registry Number.