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2-{4-[4-amino-2-(2,2-dimethyl-propionylamino)-pyrido[2,3-d]pyrimidin-6-ylethynyl]-benzoylamino}-pentanedioic acid diethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

221469-30-3

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221469-30-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 221469-30-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,4,6 and 9 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 221469-30:
(8*2)+(7*2)+(6*1)+(5*4)+(4*6)+(3*9)+(2*3)+(1*0)=113
113 % 10 = 3
So 221469-30-3 is a valid CAS Registry Number.

221469-30-3Relevant academic research and scientific papers

The synthesis and biological activity of a series of 2,4- diaminopyrido[2,3-d]pyrimidine based antifolates as antineoplastic and antiarthritic agents

Gossett, Lynn S.,Habeck, Lillian L.,Shackelford, Katherine A.,Mendelsohn, Laurane G.,Gates, Susan B.,Worzalla, John F.,Self, Tracy D.,Theobald, Karla S.,Andis, Sherri L.,Schultz, Richard M.,Chuan, Shih

, p. 75 - 78 (1999)

A new series of 2,4-diaminopyrido[2,3-d]pyrimidine based antifolates 1- 3 were synthesized through an efficient conversion of 2-pivaloyl-4-oxo-6- ethynylpyrido[2,3-d]pyrimidine 5 to the corresponding 4-amino analog 7 via the activated 1,2,4-triazole inter

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