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209458-40-2

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209458-40-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 209458-40-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,9,4,5 and 8 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 209458-40:
(8*2)+(7*0)+(6*9)+(5*4)+(4*5)+(3*8)+(2*4)+(1*0)=142
142 % 10 = 2
So 209458-40-2 is a valid CAS Registry Number.

209458-40-2Downstream Products

209458-40-2Relevant academic research and scientific papers

Direct amination of phenols under metal-free conditions

Yu, Jianzhong,Wang, Yongtao,Zhang, Peizhi,Wu, Jun

supporting information, p. 1448 - 1454 (2013/07/26)

Herein, we disclose the metal-free synthesis of arylamines via the direct amination of phenols using aminating reagents. This reaction procedure uses easy accessible aminating reagents and provides a versatile synthetic route to a broad range of arylamines with various functionalities in good to excellent yield. By using a two-step route of amination and oxidative coupling reaction, we synthesized three naturally occurring carbazole alkaloids: murrayafoline A, mukonine, and clausenine from two commercially available phenols. Georg Thieme Verlag Stuttgart · New York.

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