743401-30-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 743401-30-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,3,4,0 and 1 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 743401-30:
(8*7)+(7*4)+(6*3)+(5*4)+(4*0)+(3*1)+(2*3)+(1*0)=131
131 % 10 = 1
So 743401-30-1 is a valid CAS Registry Number.