24454-91-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 24454-91-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,4,4,5 and 4 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 24454-91:
(7*2)+(6*4)+(5*4)+(4*5)+(3*4)+(2*9)+(1*1)=109
109 % 10 = 9
So 24454-91-9 is a valid CAS Registry Number.