143809-24-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143809-24-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,8,0 and 9 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 143809-24:
(8*1)+(7*4)+(6*3)+(5*8)+(4*0)+(3*9)+(2*2)+(1*4)=129
129 % 10 = 9
So 143809-24-9 is a valid CAS Registry Number.