19821-84-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19821-84-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,8,2 and 1 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 19821-84:
(7*1)+(6*9)+(5*8)+(4*2)+(3*1)+(2*8)+(1*4)=132
132 % 10 = 2
So 19821-84-2 is a valid CAS Registry Number.