42805-39-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42805-39-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,8,0 and 5 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 42805-39:
(7*4)+(6*2)+(5*8)+(4*0)+(3*5)+(2*3)+(1*9)=110
110 % 10 = 0
So 42805-39-0 is a valid CAS Registry Number.