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1293237-39-4

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1293237-39-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1293237-39-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,3,2,3 and 7 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1293237-39:
(9*1)+(8*2)+(7*9)+(6*3)+(5*2)+(4*3)+(3*7)+(2*3)+(1*9)=164
164 % 10 = 4
So 1293237-39-4 is a valid CAS Registry Number.

1293237-39-4Relevant academic research and scientific papers

Preparation of functional benzofurans and indoles via chemoselective intramolecular Wittig reactions

Lee, Yu-Ting,Jang, Yeong-Jiunn,Syu, Siang-En,Chou, Shu-Chi,Lee, Chia-Jui,Lin, Wenwei

supporting information; experimental part, p. 8135 - 8137 (2012/09/07)

A general preparation of new types of benzofurans, benzothiophenes and indoles is realized via chemoselective intramolecular Wittig reactions with the corresponding ester, thioester and amide functionalities using in situ formed phosphorus ylides as key i

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