42104-32-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42104-32-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,1,0 and 4 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 42104-32:
(7*4)+(6*2)+(5*1)+(4*0)+(3*4)+(2*3)+(1*2)=65
65 % 10 = 5
So 42104-32-5 is a valid CAS Registry Number.