71340-97-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71340-97-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,3,4 and 0 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 71340-97:
(7*7)+(6*1)+(5*3)+(4*4)+(3*0)+(2*9)+(1*7)=111
111 % 10 = 1
So 71340-97-1 is a valid CAS Registry Number.