18839-24-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18839-24-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,8,3 and 9 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 18839-24:
(7*1)+(6*8)+(5*8)+(4*3)+(3*9)+(2*2)+(1*4)=142
142 % 10 = 2
So 18839-24-2 is a valid CAS Registry Number.