4401-76-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4401-76-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,0 and 1 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 4401-76:
(6*4)+(5*4)+(4*0)+(3*1)+(2*7)+(1*6)=67
67 % 10 = 7
So 4401-76-7 is a valid CAS Registry Number.