84039-54-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84039-54-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,0,3 and 9 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 84039-54:
(7*8)+(6*4)+(5*0)+(4*3)+(3*9)+(2*5)+(1*4)=133
133 % 10 = 3
So 84039-54-3 is a valid CAS Registry Number.