109407-78-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109407-78-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,4,0 and 7 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 109407-78:
(8*1)+(7*0)+(6*9)+(5*4)+(4*0)+(3*7)+(2*7)+(1*8)=125
125 % 10 = 5
So 109407-78-5 is a valid CAS Registry Number.