N-(3-Oxotetradecanoyl)-DL-homoserine lactone
Based on 1 Customer Validation
N-(3-Oxotetradecanoyl)-DL-homoserine lactone, a member of N-Acyl homoserine lactone (AHL) from gram-negative bacteria, is a quorum sensing (QS) signaling molecule.
For research use only. We do not sell to patients.
- Purity : 95.12%
- CAS No.: 503610-29-5
- Formula: C18H31NO4
- Molecular Weight:325.44
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month
Biological Activity
Description
Chemical Information
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CAS No. 503610-29-5
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Appearance Solid
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Molecular Weight 325.44
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Formula C18H31NO4
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Color White to off-white
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SMILES
CCCCCCCCCCCC(CC(NC1C(OCC1)=O)=O)=O
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Synonyms
3-Oxo-C14-AHL
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Structure Classification
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Initial Source
Gram-negative bacteria
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Solvent & Solubility
In Vitro:
DMSO : 100 mg/mL (307.28 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
In Vivo:
Select the appropriate dissolution method based on your experimental animal and administration route.
- For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
- To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
- The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.5 mg/mL (7.68 mM); Clear solution
This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
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%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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%+
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+%Tween-80 + +
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%Saline +
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Working solution concentration: 0.22 mg/mL
Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL.
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Protocols
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Gram Staining of Tissue Sections
Gram staining of tissue sections is a histochemical technique used to differentiate Gram-positive and Gram-negative bacteria within histological specimens based on differences in bacterial cell wall structure and dye retention, adapted from classical bacteriological Gram staining into tissue-compatible “histological Gram stain” variants. In tissue applications, modifications of the Brown-Hopps and Brown-Brenn methods are commonly used to improve differentiation of microorganisms embedded within host connective tissue and to reduce overstaining or loss of Gram-negative signal, which are known limitations of earlier approaches. The principle relies on crystal violet-iodine complex retention in Gram-positive organisms and subsequent decolorization and counterstaining steps that allow contrast visualization of Gram-negative organisms against tissue background.
Purity & Documentation
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Data Sheet (267 KB)
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SDS (251 KB)
- English - EN (251 KB)
- Français - FR (251 KB)
- Deutsch - DE (251 KB)
- Norwegian - NO (251 KB)
- Español - ES (251 KB)
- Swedish - SV (251 KB)
- Italian - IT (251 KB)
- Korean - KR (251 KB)
- Portuguese - PT (251 KB)
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Handling Instructions (2659 KB)
References
[1]. Gao J, et, al. An N-acyl homoserine lactone synthase in the ammonia-oxidizing bacterium Nitrosospira multiformis. Appl Environ Microbiol. 2014 Feb;80(3):951-8. [Content Brief]
[2]. Nievas F, et, al. Detection, characterization, and biological effect of quorum-sensing signaling molecules in peanut-nodulating bradyrhizobia. Sensors (Basel). 2012;12(3):2851-73. [Content Brief]
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 3.0728 mL | 15.3638 mL | 30.7276 mL | 76.8191 mL |
| 5 mM | 0.6146 mL | 3.0728 mL | 6.1455 mL | 15.3638 mL | |
| 10 mM | 0.3073 mL | 1.5364 mL | 3.0728 mL | 7.6819 mL | |
| 15 mM | 0.2049 mL | 1.0243 mL | 2.0485 mL | 5.1213 mL | |
| 20 mM | 0.1536 mL | 0.7682 mL | 1.5364 mL | 3.8410 mL | |
| 25 mM | 0.1229 mL | 0.6146 mL | 1.2291 mL | 3.0728 mL | |
| 30 mM | 0.1024 mL | 0.5121 mL | 1.0243 mL | 2.5606 mL | |
| 40 mM | 0.0768 mL | 0.3841 mL | 0.7682 mL | 1.9205 mL | |
| 50 mM | 0.0615 mL | 0.3073 mL | 0.6146 mL | 1.5364 mL | |
| 60 mM | 0.0512 mL | 0.2561 mL | 0.5121 mL | 1.2803 mL | |
| 80 mM | 0.0384 mL | 0.1920 mL | 0.3841 mL | 0.9602 mL | |
| 100 mM | 0.0307 mL | 0.1536 mL | 0.3073 mL | 0.7682 mL |