78417-52-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78417-52-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,4,1 and 7 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 78417-52:
(7*7)+(6*8)+(5*4)+(4*1)+(3*7)+(2*5)+(1*2)=154
154 % 10 = 4
So 78417-52-4 is a valid CAS Registry Number.