449809-31-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 449809-31-8 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, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 449809-31:
(8*4)+(7*4)+(6*9)+(5*8)+(4*0)+(3*9)+(2*3)+(1*1)=188
188 % 10 = 8
So 449809-31-8 is a valid CAS Registry Number.
449809-31-8Relevant academic research and scientific papers
6-Substituted pyrido-pyrimidines
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, (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.
