78397-05-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78397-05-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,3,9 and 7 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 78397-05:
(7*7)+(6*8)+(5*3)+(4*9)+(3*7)+(2*0)+(1*5)=174
174 % 10 = 4
So 78397-05-4 is a valid CAS Registry Number.