143424-20-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143424-20-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,4,2 and 4 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 143424-20:
(8*1)+(7*4)+(6*3)+(5*4)+(4*2)+(3*4)+(2*2)+(1*0)=98
98 % 10 = 8
So 143424-20-8 is a valid CAS Registry Number.