833-87-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 833-87-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,3 and 3 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 833-87:
(5*8)+(4*3)+(3*3)+(2*8)+(1*7)=84
84 % 10 = 4
So 833-87-4 is a valid CAS Registry Number.