34840-26-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 34840-26-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,8,4 and 0 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 34840-26:
(7*3)+(6*4)+(5*8)+(4*4)+(3*0)+(2*2)+(1*6)=111
111 % 10 = 1
So 34840-26-1 is a valid CAS Registry Number.