78416-72-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78416-72-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,4,1 and 6 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 78416-72:
(7*7)+(6*8)+(5*4)+(4*1)+(3*6)+(2*7)+(1*2)=155
155 % 10 = 5
So 78416-72-5 is a valid CAS Registry Number.