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10939

Sigma-Aldrich

N-Heptanoyl-DL-homoserine lactone

≥97.0% (HPLC)

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About This Item

Empirical Formula (Hill Notation):
C11H19NO3
CAS Number:
Molecular Weight:
213.27
MDL number:
UNSPSC Code:
12352209
eCl@ss:
32160406
PubChem Substance ID:
NACRES:
NA.26

product name

N-Heptanoyl-DL-homoserine lactone, ≥97.0% (HPLC)

Quality Level

Assay

≥97.0% (HPLC)

form

powder with small lumps

color

white to faintly brown

storage temp.

−20°C

SMILES string

CCCCCCC(=O)NC1CCOC1=O

InChI

1S/C11H19NO3/c1-2-3-4-5-6-10(13)12-9-7-8-15-11(9)14/h9H,2-8H2,1H3,(H,12,13)

InChI key

FTMZLSDESAOPSZ-UHFFFAOYSA-N

Application

Application test: Induces violacein expression in a Chromobacterium violaceum mutant usually not able to produce homoserine lactones.

Biochem/physiol Actions

N-Heptanoyl-DL-homoserine lactone (C7HSL) is among a group of homoserine lactones that includes; N-octanoyl-homoserine lactone (N-C8-HSL), N-Decanoyl-DL-homoserine lactone (N-C10-HSL), N-(3-oxodecanoyl) homoserine-L-lactone (3-oxo-C10 HSL), N-(3-oxododecanoyl)homoserine-L-lactone (3-oxo-C12-HSL), N-(3-Oxotetradecanoyl)-L-homoserine lactone (3-oxo-C14-HSL, N-(3-hydroxydecanoyl)-L-homoserine lactone, and N-(3-hydroxyoctanoyl)-L-homoserine lactone involved in the processes of bacterial quorum sensing. These N-acyl-homoserine lactones are used to study the processes and mechanisms of bacterial quorum sensing.
N-Heptanoyl-DL-homoserine lactone is a member of N-acyl-homoserine lactone family. N-acylhomoserine lactones (AHL) regulate gene expression in gram-negative bacteria, such asEcherichia and Salmonella are involved in quorum sensing, cell to cell communication among bacteria. Some AHLs are potent chemoattractants for human immune cells such as neutrophils.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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Armando M Pomini et al.
Journal of natural products, 71(6), 1032-1036 (2008-05-10)
(S)-N-Heptanoylhomoserine lactone is an uncommon acyl odd-chain natural product employed by many Gram-negative bacteria as a signaling substance in chemical communication mechanisms known as quorum sensing. The absolute configuration determination of the metabolite produced by the phytopathogen Pantoea ananatis Serrano
Detection of acyl-homoserine lactones by Escherichia and Salmonella.
Soares JA, Ahmer BM.
Current Opinion in Microbiology, 12, 188-193 (2011)
Frank Wilco Bartels et al.
Biophysical journal, 92(12), 4391-4400 (2007-03-27)
Intercellular communication by means of small signal molecules coordinates gene expression among bacteria. This population density-dependent regulation is known as quorum sensing. The symbiotic nitrogen-fixing bacterium Sinorhizobium meliloti Rm1021 possesses the Sin quorum sensing system based on N-acyl homoserine lactones
Leo Eberl
International journal of medical microbiology : IJMM, 296(2-3), 103-110 (2006-02-24)
The genus Burkholderia contains over 30 species, many of which are important human pathogens. In addition to the primary pathogens Burkholderia pseudomallei and Burkholderia mallei, several species have emerged as opportunistic pathogens in persons suffering from cystic fibrosis (CF) and
Joanne Hothersall et al.
Applied microbiology and biotechnology, 90(3), 1017-1026 (2011-02-15)
Transcription of the 74 kb Pseudomonas fluorescens mupirocin [pseudomonic acid (PA)] biosynthesis cluster depends on quorum sensing-dependent regulation via the LuxI/LuxR homologues MupI/MupR. To facilitate analysis of novel PAs from pathway mutants, we investigated factors that affect mup gene expression.

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