28249-41-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28249-41-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,2,4 and 9 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 28249-41:
(7*2)+(6*8)+(5*2)+(4*4)+(3*9)+(2*4)+(1*1)=124
124 % 10 = 4
So 28249-41-4 is a valid CAS Registry Number.