778545-97-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 778545-97-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,7,8,5,4 and 5 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 778545-97:
(8*7)+(7*7)+(6*8)+(5*5)+(4*4)+(3*5)+(2*9)+(1*7)=234
234 % 10 = 4
So 778545-97-4 is a valid CAS Registry Number.