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hexa-2,4-diynedioic acid diethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

196789-93-2

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196789-93-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 196789-93-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,6,7,8 and 9 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 196789-93:
(8*1)+(7*9)+(6*6)+(5*7)+(4*8)+(3*9)+(2*9)+(1*3)=222
222 % 10 = 2
So 196789-93-2 is a valid CAS Registry Number.

196789-93-2Relevant academic research and scientific papers

Copper immobilized on nano-silica triazine dendrimer (Cu(ii)-TD@nSiO 2) catalyzed synthesis of symmetrical and unsymmetrical 1,3-diynes under aerobic conditions at ambient temperature

Nasr-Esfahani, Mahboobeh,Mohammadpoor-Baltork, Iraj,Khosropour, Ahmad Reza,Moghadam, Majid,Mirkhani, Valiollah,Tangestaninejad, Shahram,Agabekov, Vladislav,Rudbari, Hadi Amiri

, p. 14291 - 14296 (2014)

A highly efficient route for the synthesis of symmetrical and unsymmetrical 1,3-diynes has been developed by Cu(ii)-TD@nSiO2/DBU catalyzed homocoupling/heterocoupling of aromatic as well as aliphatic terminal alkynes under aerobic conditions at ambient temperature. The catalyst could be easily recovered and reused several times without significant loss of its activity.

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