24821-91-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 24821-91-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,4,8,2 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 24821-91:
(7*2)+(6*4)+(5*8)+(4*2)+(3*1)+(2*9)+(1*1)=108
108 % 10 = 8
So 24821-91-8 is a valid CAS Registry Number.