24689-80-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 24689-80-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,4,6,8 and 9 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 24689-80:
(7*2)+(6*4)+(5*6)+(4*8)+(3*9)+(2*8)+(1*0)=143
143 % 10 = 3
So 24689-80-3 is a valid CAS Registry Number.