4407-88-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4407-88-9 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 7 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 4407-88:
(6*4)+(5*4)+(4*0)+(3*7)+(2*8)+(1*8)=89
89 % 10 = 9
So 4407-88-9 is a valid CAS Registry Number.