42179-04-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42179-04-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,1,7 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 42179-04:
(7*4)+(6*2)+(5*1)+(4*7)+(3*9)+(2*0)+(1*4)=104
104 % 10 = 4
So 42179-04-4 is a valid CAS Registry Number.