4099-16-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4099-16-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,0,9 and 9 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 4099-16:
(6*4)+(5*0)+(4*9)+(3*9)+(2*1)+(1*6)=95
95 % 10 = 5
So 4099-16-5 is a valid CAS Registry Number.