6449-77-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6449-77-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,4 and 9 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 6449-77:
(6*6)+(5*4)+(4*4)+(3*9)+(2*7)+(1*7)=120
120 % 10 = 0
So 6449-77-0 is a valid CAS Registry Number.