4089-44-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4089-44-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,0,8 and 9 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 4089-44:
(6*4)+(5*0)+(4*8)+(3*9)+(2*4)+(1*4)=95
95 % 10 = 5
So 4089-44-5 is a valid CAS Registry Number.