78424-04-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78424-04-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,4,2 and 4 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 78424-04:
(7*7)+(6*8)+(5*4)+(4*2)+(3*4)+(2*0)+(1*4)=141
141 % 10 = 1
So 78424-04-1 is a valid CAS Registry Number.