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912345-32-5

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912345-32-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 912345-32-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,2,3,4 and 5 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 912345-32:
(8*9)+(7*1)+(6*2)+(5*3)+(4*4)+(3*5)+(2*3)+(1*2)=145
145 % 10 = 5
So 912345-32-5 is a valid CAS Registry Number.

912345-32-5Relevant articles and documents

Affinity-Guided Oxime Chemistry for Selective Protein Acylation in Live Tissue Systems

Tamura, Tomonori,Song, Zhining,Amaike, Kazuma,Lee, Shin,Yin, Sifei,Kiyonaka, Shigeki,Hamachi, Itaru

, p. 14181 - 14191 (2017)

Catalyst-mediated protein modification is a powerful approach for the imaging and engineering of natural proteins. We have previously developed affinity-guided 4-dimethylaminopyridine (AGD) chemistry as an efficient protein modification method using a catalytic acyl transfer reaction. However, because of the high electrophilicity of the thioester acyl donor molecule, AGD chemistry suffers from nonspecific reactions to proteins other than the target protein in crude biological environments, such as cell lysates, live cells, and tissue samples. To overcome this shortcoming, we here report a new acyl donor/organocatalyst system that allows more specific and efficient protein modification. In this method, a highly nucleophilic pyridinium oxime (PyOx) catalyst is conjugated to a ligand specific to the target protein. The ligand-tethered PyOx selectively binds to the target protein and facilitates the acyl transfer reaction of a mild electrophilic N-acyl-N-alkylsulfonamide acyl donor on the protein surface. We demonstrated that the new catalytic system, called AGOX (affinity-guided oxime) chemistry, can modify target proteins, both in test tubes and cell lysates, more selectively and efficiently than AGD chemistry. Low-background fluorescence labeling of the endogenous cell-membrane proteins, carbonic anhydrase XII and the folate receptor, in live cells allowed for the precise quantification of diffusion coefficients in the protein's native environment. Furthermore, the excellent biocompatibility and bioorthogonality of AGOX chemistry were demonstrated by the selective labeling of an endogenous neurotransmitter receptor in mouse brain slices, which are highly complicated tissue samples.

Azidothymidine "clicked" into 1,2,3-Triazoles: First Report on Carbonic Anhydrase-Telomerase Dual-Hybrid Inhibitors

Berrino, Emanuela,Angeli, Andrea,Zhdanov, Dmitry D.,Kiryukhina, Anna P.,Milaneschi, Andrea,De Luca, Alessandro,Bozdag, Murat,Carradori, Simone,Selleri, Silvia,Bartolucci, Gianluca,Peat, Thomas S.,Ferraroni, Marta,Supuran, Claudiu T.,Carta, Fabrizio

, p. 7392 - 7409 (2020/09/12)

Cancer cells rely on the enzyme telomerase (EC 2.7.7.49) to promote cellular immortality. Telomerase inhibitors (i.e., azidothymidine) can represent promising antitumor agents, although showing high toxicity when administered alone. Better outcomes were o

A novel class of carbonic anhydrase inhibitors: Glycoconjugate benzene sulfonamides prepared by "click-tailing"

Wilkinson, Brendan L.,Bornaghi, Laurent F.,Houston, Todd A.,Innocente, Alessio,Supuran, Claudiu T.,Poulsen, Sally-Ann

, p. 6539 - 6548 (2007/10/03)

Aryl and heteroaryl sulfonamides (ArSO2NH2) are therapeutically used to inhibit the catalytic activity of carbonic anhydrases (CAs). Using a "click-tail" approach a novel class of glycoconjugate benzene sulfonamides have been synthes

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