1823-84-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1823-84-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,8,2 and 3 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1823-84:
(6*1)+(5*8)+(4*2)+(3*3)+(2*8)+(1*4)=83
83 % 10 = 3
So 1823-84-3 is a valid CAS Registry Number.