2099-39-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2099-39-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,0,9 and 9 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 2099-39:
(6*2)+(5*0)+(4*9)+(3*9)+(2*3)+(1*9)=90
90 % 10 = 0
So 2099-39-0 is a valid CAS Registry Number.