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94398

Sigma-Aldrich

2-Heptyl-3-hydroxy-4(1H)-quinolone

≥96.0% (HPLC)

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About This Item

Empirical Formula (Hill Notation):
C16H21NO2
CAS Number:
Molecular Weight:
259.34
MDL number:
UNSPSC Code:
12352005
PubChem Substance ID:
NACRES:
NA.25

Quality Level

Assay

≥96.0% (HPLC)

form

powder

storage temp.

−20°C

SMILES string

CCCCCCCC1=C(O)C(=O)c2ccccc2N1

InChI

1S/C16H21NO2/c1-2-3-4-5-6-11-14-16(19)15(18)12-9-7-8-10-13(12)17-14/h7-10,19H,2-6,11H2,1H3,(H,17,18)

InChI key

CEIUIHOQDSVZJQ-UHFFFAOYSA-N

General description

2-heptyl-3-hydroxy-4-quinolone can function as an intercellular signal.

Application

Quorum sensing is a signaling system used by bacteria to coordinate activity based upon their population density. The system involves the exchange of signaling molecules among bacteria via cell receptors. Heptyl-3-hydroxy-4(1H)-quinolone (PQS) is a quorum sensing-regulated virulence factor used to induce and study the regulation of virulence genes such as those involved in iron scavenging.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Hazard Statements

Hazard Classifications

Aquatic Chronic 4

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Jintae Lee et al.
Microbial biotechnology, 2(1), 75-90 (2009-01-01)
Indole is an extracellular biofilm signal for Escherichia coli, and many bacterial oxygenases readily convert indole to various oxidized compounds including 7-hydroxyindole (7HI). Here we investigate the impact of indole and 7HI on Pseudomonas aeruginosa PAO1 virulence and quorum sensing
Stephen P Diggle et al.
Chemistry & biology, 14(1), 87-96 (2007-01-27)
Pseudomonas aeruginosa produces 2-heptyl-3-hydroxy-4(1H)-quinolone (PQS), a quorum-sensing (QS) signal that regulates numerous virulence genes including those involved in iron scavenging. Biophysical analysis revealed that 2-alkyl-3-hydroxy-4-quinolones form complexes with iron(III) at physiological pH. The overall stability constant of 2-methyl-3-hydroxy-4-quinolone iron(III) complex
E C Pesci et al.
Proceedings of the National Academy of Sciences of the United States of America, 96(20), 11229-11234 (1999-09-29)
Numerous species of bacteria use an elegant regulatory mechanism known as quorum sensing to control the expression of specific genes in a cell-density dependent manner. In Gram-negative bacteria, quorum sensing systems function through a cell-to-cell signal molecule (autoinducer) that consists
Monique Donnert et al.
PLoS pathogens, 16(12), e1009126-e1009126 (2020-12-23)
Embedded in an extracellular matrix, biofilm-residing bacteria are protected from diverse physicochemical insults. In accordance, in the human host the general recalcitrance of biofilm-grown bacteria hinders successful eradication of chronic, biofilm-associated infections. In this study, we demonstrate that upon addition
Doreen S W Hooi et al.
Infection and immunity, 72(11), 6463-6470 (2004-10-27)
Pseudomonas aeruginosa releases a spectrum of well-regulated virulence factors, controlled by intercellular communication (quorum sensing) and mediated through the production of small diffusible quorum-sensing signal molecules (QSSM). We hypothesize that QSSM may in fact serve a dual purpose, also allowing

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