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o-Nitrobenzoesaeure-m-nitrophenylester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

31042-68-9

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31042-68-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31042-68-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,0,4 and 2 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 31042-68:
(7*3)+(6*1)+(5*0)+(4*4)+(3*2)+(2*6)+(1*8)=69
69 % 10 = 9
So 31042-68-9 is a valid CAS Registry Number.

31042-68-9Downstream Products

31042-68-9Relevant academic research and scientific papers

Ph3P-I2 mediated aryl esterification with a mechanistic insight

Phakhodee, Wong,Duangkamol, Chuthamat,Pattarawarapan, Mookda

, p. 2087 - 2089 (2016)

In order to better understand the reaction mechanism and to obtain optimal conditions, the Ph3P-I2/Et3N mediated aryl esterification reaction was thoroughly investigated. Using a specific reagent addition sequence, the reaction proceeds remarkably well especially with acidic substrates. 31P NMR studies revealed that the formation of an aryloxyphosphonium salt is crucial in governing the reaction path toward the formation of phenolic esters.

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