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N-Octanoyl-L-homoserine lactone

Cat No.:V53199 Purity: ≥98%
N-octanoyl-L-Homoserine lactone is a diffusible small signaling molecule that controls gene expression and affects cell metabolism by participating in quorum sensing.
N-Octanoyl-L-homoserine lactone
N-Octanoyl-L-homoserine lactone Chemical Structure CAS No.: 147852-84-4
Product category: Bacterial
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
5mg
10mg
50mg
Other Sizes

Other Forms of N-Octanoyl-L-homoserine lactone:

  • N-Octanoyl-DL-homoserine lactone
Official Supplier of:
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Top Publications Citing lnvivochem Products
Product Description
N-octanoyl-L-Homoserine lactone is a diffusible small signaling molecule that controls gene expression and affects cell metabolism by participating in quorum sensing. N-octanoyl-L-Homoserine lactone is being studied for infection prevention in cystic fibrosis.
N-Octanoyl-L-homoserine lactone (C8-HSL) is a medium-chain acyl homoserine lactone known for its role in quorum-sensing communication among bacteria. It is a small signaling molecule involved in quorum sensing. N-Octanoyl-L-homoserine lactone is widely utilized in microbiology and infection biology research to investigate quorum-sensing mechanisms, screen for quorum-sensing inhibitors, and study bacterial communication networks. It is an active quorum sensing modulator first recognised in Yersinia pseudotuberculosis.
Biological Activity I Assay Protocols (From Reference)
Targets
N-Octanoyl-L-homoserine lactone targets bacterial quorum sensing systems. Its amphipathic character allows partitioning into lipid bilayers, making it useful in studies that explore signal transduction across membranes and intercellular lipid-mediated communication. The compound binds to its cognate receptor, TofR in Burkholderia glumae. Quorum sensing mediated by N-acyl-L-homoserine lactones controls virulence, motility, and protein secretion.
ln Vitro
N-Octanoyl-L-homoserine lactone demonstrates in vitro activity as a quorum-sensing signaling molecule. It is used to study bacterial communication networks and to screen for quorum-sensing inhibitors. The compound's activity is typically assessed in reporter assays using bacterial strains engineered to respond to AHL signals, or in biofilm formation and virulence factor production assays.
ln Vivo
In vivo activity of N-octanoyl-L-homoserine lactone has been suggested by its role in quorum sensing in bacterial infections, particularly in models relevant to chronic infections such as those associated with cystic fibrosis. Further in vivo studies are needed to evaluate its role in bacterial pathogenesis and its potential as a target for anti-virulence therapies.
Enzyme Assay
In vitro enzyme/receptor binding assays for N-octanoyl-L-homoserine lactone involve measuring its binding to quorum-sensing receptors such as TofR. Binding affinity can be assessed using surface plasmon resonance or radioligand binding assays. The compound's ability to activate quorum-sensing pathways can be evaluated using reporter gene assays.
Cell Assay
In vitro cellular assays for N-octanoyl-L-homoserine lactone involve treating bacterial cultures with varying concentrations of the compound and measuring quorum-sensing-regulated phenotypes such as bioluminescence, biofilm formation, or virulence factor production. Reporter strains containing lux or lacZ fusions to quorum-sensing promoters are commonly used.
Animal Protocol
In vivo animal experiments for N-octanoyl-L-homoserine lactone are not extensively documented. If used in animal models of bacterial infection, typical protocols would involve administering the compound to infected animals to study its role in quorum sensing and bacterial pathogenesis. Further studies are needed to characterize its in vivo activity.
ADME/Pharmacokinetics
Pharmacokinetic data for N-octanoyl-L-homoserine lactone are limited. The compound has a molecular weight of 227.30 and a molecular formula of C12H21NO3. Its amphipathic character allows partitioning into lipid bilayers. The compound is typically used in in vitro research settings. Its stability and metabolism in biological systems are areas of ongoing research.
Toxicity/Toxicokinetics
Toxicological data for N-octanoyl-L-homoserine lactone are limited. As a bacterial signaling molecule, it is generally considered to have low toxicity in research settings. The compound is intended for research use only. Standard laboratory safety precautions should be followed when handling this compound.
Additional Infomation
N-Octayl-L-homoserine lactone is an N-acyl amino acid. N-(2-oxotetrahydrofuran-3-yl)octaylamide has been reported in Vibrio fischeri and Cyclofilariae, and relevant data are available for reference.
N-Octanoyl-L-homoserine lactone (CAS#: 147852-84-4) has the molecular formula C12H21NO3 and a molecular weight of 227.30. Purity is ≥98%. It is a medium-chain acyl homoserine lactone known for its role in quorum-sensing communication among bacteria. The compound is an active quorum sensing modulator first recognised in Yersinia pseudotuberculosis. It is for research use only.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C12H21NO3
Molecular Weight
227.30
Exact Mass
227.152
CAS #
147852-84-4
Related CAS #
N-Octanoyl-DL-homoserine lactone;106983-30-6
PubChem CID
6914579
Appearance
Typically exists as solid at room temperature
Melting Point
134-135°C (lit.)
LogP
2.169
Hydrogen Bond Donor Count
1
Hydrogen Bond Acceptor Count
3
Rotatable Bond Count
7
Heavy Atom Count
16
Complexity
240
Defined Atom Stereocenter Count
1
SMILES
O1C([C@]([H])(C([H])([H])C1([H])[H])N([H])C(C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H])=O)=O
InChi Key
JKEJEOJPJVRHMQ-JTQLQIEISA-N
InChi Code
InChI=1S/C12H21NO3/c1-2-3-4-5-6-7-11(14)13-10-8-9-16-12(10)15/h10H,2-9H2,1H3,(H,13,14)/t10-/m0/s1
Chemical Name
N-[(3S)-2-oxooxolan-3-yl]octanamide
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO : 100 mg/mL (439.95 mM)
Solubility (In Vivo)
Solubility in Formulation 1: 2.5 mg/mL (11.00 mM) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), suspension solution; with sonication.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: 2.5 mg/mL (11.00 mM) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), suspension solution; with ultrasonication.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

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Solubility in Formulation 3: ≥ 2.5 mg/mL (11.00 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.


 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 4.3995 mL 21.9974 mL 43.9947 mL
5 mM 0.8799 mL 4.3995 mL 8.7989 mL
10 mM 0.4399 mL 2.1997 mL 4.3995 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

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What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
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What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
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  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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