143947-73-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143947-73-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,9,4 and 7 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 143947-73:
(8*1)+(7*4)+(6*3)+(5*9)+(4*4)+(3*7)+(2*7)+(1*3)=153
153 % 10 = 3
So 143947-73-3 is a valid CAS Registry Number.