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918643-33-1

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918643-33-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 918643-33-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,8,6,4 and 3 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 918643-33:
(8*9)+(7*1)+(6*8)+(5*6)+(4*4)+(3*3)+(2*3)+(1*3)=191
191 % 10 = 1
So 918643-33-1 is a valid CAS Registry Number.

918643-33-1Relevant articles and documents

PROCESSES AND INTERMEDIATES FOR PREPARING FUSED HETEROCYCLIC KINASE INHIBITORS

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Page/Page column 88; 102, (2009/04/25)

The invention relates to processes and intermediates for manufacturing fused heterocyclic-type kinase inhibitor compounds, such as thienopyridine-based compounds, and to processes and intermediates for preparing intermediates that are useful in the manufacture of fused heterocyclic-type kinase inhibitor compounds, particularly at an industrial level The processes are aimed at ultimately forming compounds of the formula (A) where M is thieno[3,2,b]pyridinyl as shown, the group D is a ring or ring system, preferably pyridine, and the group Z, Ar, and G are as defined herein Such compounds can act to inhibit the protein tyrosine kinase activity of growth factor receptors, resulting in the inhibition of receptor signalling, for example, the inhibition of VEGF receptor signalling and HGF receptor signalling.

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