23999-84-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23999-84-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,9,9 and 9 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 23999-84:
(7*2)+(6*3)+(5*9)+(4*9)+(3*9)+(2*8)+(1*4)=160
160 % 10 = 0
So 23999-84-0 is a valid CAS Registry Number.