1440-77-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1440-77-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,4,4 and 0 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1440-77:
(6*1)+(5*4)+(4*4)+(3*0)+(2*7)+(1*7)=63
63 % 10 = 3
So 1440-77-3 is a valid CAS Registry Number.