740808-89-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 740808-89-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,0,8,0 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 740808-89:
(8*7)+(7*4)+(6*0)+(5*8)+(4*0)+(3*8)+(2*8)+(1*9)=173
173 % 10 = 3
So 740808-89-3 is a valid CAS Registry Number.