19842-84-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19842-84-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,8,4 and 2 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 19842-84:
(7*1)+(6*9)+(5*8)+(4*4)+(3*2)+(2*8)+(1*4)=143
143 % 10 = 3
So 19842-84-3 is a valid CAS Registry Number.