740840-45-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 740840-45-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,0,8,4 and 0 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 740840-45:
(8*7)+(7*4)+(6*0)+(5*8)+(4*4)+(3*0)+(2*4)+(1*5)=153
153 % 10 = 3
So 740840-45-3 is a valid CAS Registry Number.