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14253-59-9

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14253-59-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 14253-59-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,4,2,5 and 3 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 14253-59:
(7*1)+(6*4)+(5*2)+(4*5)+(3*3)+(2*5)+(1*9)=89
89 % 10 = 9
So 14253-59-9 is a valid CAS Registry Number.

14253-59-9Downstream Products

14253-59-9Relevant articles and documents

Cinchona alkaloid derivative modified Fe3O4nanoparticles for enantioselective ring opening of: Meso -cyclic anhydrides

Soni, Hemant P.,Tomer, Sanjiv O.

, p. 2495 - 2507 (2022/02/11)

In the present work, the molecular framework of quinidine was modified at the methoxy functional group of the C6′ carbon of the quinoline moiety with a long-chain carboxylic acid group (-COOH) and it was used as a capping agent during the synthesis of Fe3

Enzymatic optical resolution of norbornanecarboxylic esters using Pig Liver Esterase

Gastel, F. J. C. van,Klunder, A. J. H.,Zwanenburg, B.

, p. 175 - 184 (2007/10/02)

The hydrolysis of a series of norbornane-type carboxylic esters catalyzed by pig liver esterase (PLE) has been investigated.It was found that an exo-ester function (syn to the C7 methylene group) is hydrolyzed with high preference.Enantioselective hydrolysis can be accomplished when a vicinal carbonyl-containing function (ester, formyl, acetyl) is present in a trans position with respect to the exo ester.The regiospecifity of the enzymatic hydrolysis has been used for the separation of exo/endo mixtures of the cycloadducts derived from cyclopentadiene and alkene esters.The regiospecifity and enantioselectivity of the enzymatic hydrolysis of norbornane-type esters were analyzed in terms of Tamm's substrate model and also by Griengl's method.

Optical and Neutron Inelastic Scattering Study of 2,3-Dimethylnorbornanes

Brunel, Yvon,Coulombeau, Christian,Coulombeau, Christiane,Jobic, Herve

, p. 2008 - 2015 (2007/10/02)

We have measured the infrared, Raman, and neutron vibrational spectra of the 2,3-dimethylnorbornanes with two CH3 or CD3 groups in the 2- and 3-exo or endo positions.A normal-coordinate analysis has been carried out.No coupling reflecting the strain due to the methyl group appears in the C-CH3 bending and torsional modes of the trans isomer, but appears in the cis-exo isomer (average value 23 cm-1) and in the cis-endo isomer (average value 28 cm-1.The frequencies are used for the determination of the thermodynamic contribution to the standard free energy differences.

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