1421341-26-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1421341-26-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,1,3,4 and 1 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1421341-26:
(9*1)+(8*4)+(7*2)+(6*1)+(5*3)+(4*4)+(3*1)+(2*2)+(1*6)=105
105 % 10 = 5
So 1421341-26-5 is a valid CAS Registry Number.