749255-43-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 749255-43-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,9,2,5 and 5 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 749255-43:
(8*7)+(7*4)+(6*9)+(5*2)+(4*5)+(3*5)+(2*4)+(1*3)=194
194 % 10 = 4
So 749255-43-4 is a valid CAS Registry Number.