20529-84-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20529-84-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,5,2 and 9 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 20529-84:
(7*2)+(6*0)+(5*5)+(4*2)+(3*9)+(2*8)+(1*4)=94
94 % 10 = 4
So 20529-84-4 is a valid CAS Registry Number.