143493-99-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143493-99-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,4,9 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 143493-99:
(8*1)+(7*4)+(6*3)+(5*4)+(4*9)+(3*3)+(2*9)+(1*9)=146
146 % 10 = 6
So 143493-99-6 is a valid CAS Registry Number.