743431-07-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 743431-07-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,3,4,3 and 1 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 743431-07:
(8*7)+(7*4)+(6*3)+(5*4)+(4*3)+(3*1)+(2*0)+(1*7)=144
144 % 10 = 4
So 743431-07-4 is a valid CAS Registry Number.