34170-43-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 34170-43-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,1,7 and 0 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 34170-43:
(7*3)+(6*4)+(5*1)+(4*7)+(3*0)+(2*4)+(1*3)=89
89 % 10 = 9
So 34170-43-9 is a valid CAS Registry Number.