42044-80-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42044-80-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,0,4 and 4 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 42044-80:
(7*4)+(6*2)+(5*0)+(4*4)+(3*4)+(2*8)+(1*0)=84
84 % 10 = 4
So 42044-80-4 is a valid CAS Registry Number.