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53933-09-8

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53933-09-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 53933-09-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,9,3 and 3 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 53933-09:
(7*5)+(6*3)+(5*9)+(4*3)+(3*3)+(2*0)+(1*9)=128
128 % 10 = 8
So 53933-09-8 is a valid CAS Registry Number.

53933-09-8Relevant articles and documents

Urotensin II(4-11) Azasulfuryl Peptides: Synthesis and Biological Activity

Merlino, Francesco,Yousif, Ali M.,Billard, étienne,Dufour-Gallant, Julien,Turcotte, Stéphane,Grieco, Paolo,Chatenet, David,Lubell, William D.

, p. 4740 - 4752 (2016)

Cyclic azasulfuryl (As) peptide analogs of the urotensin II (UII, 1, H-Glu-Thr-Pro-Asp-c[Cys-Phe-Trp-Lys-Tyr-Cys]-Val-OH) fragment 4-11 were synthesized to explore the influences of backbone structure on biological activity. N-Aminosulfamides were inserted as surrogates of the Trp7 and Lys8 residues in the biologically relevant Trp-Lys-Tyr triad. A combination of solution- and solid-phase methods were used to prepare novel UII(4-11) analogs 6-11 by routes featuring alkylation of azasulfuryl-glycine tripeptide precursors to install various side chains. The pharmacological profiles of derivatives 6-11 were tested in vitro using a competitive binding assay and ex vivo using a rat aortic ring bioassay. Although the analogs exhibited weak affinity for the urotensin II receptor (UT) without agonistic activity, azasulfuryl-UII(4-11) derivatives 7-9 reduced up to 50% of the effects of UII and urotensin II-related peptide (URP) without affecting their potency.

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