18833-98-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18833-98-2 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 3 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 18833-98:
(7*1)+(6*8)+(5*8)+(4*3)+(3*3)+(2*9)+(1*8)=142
142 % 10 = 2
So 18833-98-2 is a valid CAS Registry Number.