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N-(6-ethylthieno[2,3-d]pyrimidin-4-yl)-N-(4-methoxyphenyl)amine is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

423735-09-5

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423735-09-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 423735-09-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,3,7,3 and 5 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 423735-09:
(8*4)+(7*2)+(6*3)+(5*7)+(4*3)+(3*5)+(2*0)+(1*9)=135
135 % 10 = 5
So 423735-09-5 is a valid CAS Registry Number.

423735-09-5Downstream Products

423735-09-5Relevant academic research and scientific papers

Microwave-based synthesis of novel thienopyrimidine bioisosteres of gefitinib

Phoujdar, Manisha S.,Kathiravan, Muthu K.,Bariwal, Jitender B.,Shah, Anamik K.,Jain, Kishor S.

, p. 1269 - 1273 (2008)

A series of novel 2-unsubstituted 4-(substituted)anilinothieno[2,3-d]pyrimidines is synthesized through the chlorination of the corresponding 2-unsubstituted-thieno[2,3-d]-pyrimidin-4-ones, followed by the nucleophilic displacement of the 4-Cl group of 9, with a variety of anilines. All four steps of this synthesis involve microwave irradiation (MWI) and the entire synthesis requires only 2 h.

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