42609-62-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42609-62-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,6,0 and 9 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 42609-62:
(7*4)+(6*2)+(5*6)+(4*0)+(3*9)+(2*6)+(1*2)=111
111 % 10 = 1
So 42609-62-1 is a valid CAS Registry Number.