449809-40-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 449809-40-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,9,8,0 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 449809-40:
(8*4)+(7*4)+(6*9)+(5*8)+(4*0)+(3*9)+(2*4)+(1*0)=189
189 % 10 = 9
So 449809-40-9 is a valid CAS Registry Number.
449809-40-9Relevant academic research and scientific papers
6-Substituted pyrido-pyrimidines
-
, (2008/06/13)
The present invention provides compounds of the Formula I and II: wherein R1, R3, W, Z, X1, X2, Ar1, R8 and R9 are as defined herein, and methods and intermediates for their preparation and uses thereof.
