42509-32-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42509-32-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,5,0 and 9 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 42509-32:
(7*4)+(6*2)+(5*5)+(4*0)+(3*9)+(2*3)+(1*2)=100
100 % 10 = 0
So 42509-32-0 is a valid CAS Registry Number.