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ethyl 3-(2-hydroxy-5-nitrophenyl)propanoate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

20921-11-3

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20921-11-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20921-11-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,9,2 and 1 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 20921-11:
(7*2)+(6*0)+(5*9)+(4*2)+(3*1)+(2*1)+(1*1)=73
73 % 10 = 3
So 20921-11-3 is a valid CAS Registry Number.

20921-11-3Relevant academic research and scientific papers

Novel chromogenic aminopeptidase substrates for the detection and identification of clinically important microorganisms

Cellier, Marie,James, Arthur L.,Orenga, Sylvain,Perry, John D.,Rasul, Ari K.,Robinson, Shaun N.,Stanforth, Stephen P.

, p. 5249 - 5269 (2014)

A series of amino acid derivatives 8-10, 42 and 43 have been prepared as chromogenic enzyme substrates in order to detect aminopeptidase activity in clinically important Gram-negative and Gram-positive bacteria. Enzymatic hydrolysis liberates the amino ac

Intermediates for leukotriene antagonists

-

, (2008/06/13)

This invention provides benzene derivatives which are leukotriene antagonists, formulations of those derivatives, intermediates for preparing the derivatives, and a method of using those derivatives for the treatment of conditions characterized by an excessive release of leukotrienes.

Benzophenone Dicarboxylic Acid Antagonists of Leukotriene B4. 1. Structure-Activity Relationships of the Benzophenone Nucleus

Gapinski, D. Mark,Mallett, Barbara E.,Froelich, Larry L.,Jackson, William T.

, p. 2798 - 2807 (2007/10/02)

A series of lipophilic benzophenone dicarboxylic acid derivatives was prepared which inhibited the binding of the potent chemotaxin leukotriene B4 to its receptor(s) on intact human neutrophils.With a radioligand-binding assay as a measure of receptor affinity, a structure-activity relationship for this series was investigated.Both acidic residues were required for receptor-binding activity.The relative orientation of the two acidic groups was important for optimal binding.Replacement of the carbonyl group of the benzophenone with a variety of polar and nonpolar linking groups lead to only small changes in binding affinity, indicating the linking group may not be involved in receptor recognition.Further structure-activity relationships within this series are reported in an accompanying paper.

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