24857-91-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 24857-91-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,4,8,5 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 24857-91:
(7*2)+(6*4)+(5*8)+(4*5)+(3*7)+(2*9)+(1*1)=138
138 % 10 = 8
So 24857-91-8 is a valid CAS Registry Number.