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4,10-dimethyl-7-phenyl-1-oxa-4,7,10-triazacyclododecane; 4-methylbenzenesulfonic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1337876-13-7

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1337876-13-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1337876-13-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,7,8,7 and 6 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1337876-13:
(9*1)+(8*3)+(7*3)+(6*7)+(5*8)+(4*7)+(3*6)+(2*1)+(1*3)=187
187 % 10 = 7
So 1337876-13-7 is a valid CAS Registry Number.

1337876-13-7Downstream Products

1337876-13-7Relevant academic research and scientific papers

Synthesis of azacrown ethers and benzocryptands by macrocyclization of podands at high concentrations of reactants

Oshchepkov,Perevalov,Kuzmina,Anisimov,Fedorova

, p. 478 - 485 (2011)

The reactions of 1,2-bis(2-Y-ethoxy)benzenes, N,N-bis(2-Y-ethyl)-N- phenylamines, or 2,6-bis(Y-methyl)pyridines (Y = I, Br, or OTs) with α,ω-polyoxaalkanediamines or diazacrown ethers in the presence or absence of alkali carbonates in a concentrated acetonitrile solution of the reactants afforded the corresponding azacrown ethers or cryptands in high yields.

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