42307-80-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42307-80-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,3,0 and 7 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 42307-80:
(7*4)+(6*2)+(5*3)+(4*0)+(3*7)+(2*8)+(1*0)=92
92 % 10 = 2
So 42307-80-2 is a valid CAS Registry Number.