84039-56-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84039-56-5 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 6 respectively.
Calculate Digit Verification of CAS Registry Number 84039-56:
(7*8)+(6*4)+(5*0)+(4*3)+(3*9)+(2*5)+(1*6)=135
135 % 10 = 5
So 84039-56-5 is a valid CAS Registry Number.