28126-43-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28126-43-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,1,2 and 6 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 28126-43:
(7*2)+(6*8)+(5*1)+(4*2)+(3*6)+(2*4)+(1*3)=104
104 % 10 = 4
So 28126-43-4 is a valid CAS Registry Number.