Heneicosanoic acid
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Heneicosanoic acid is an odd-chain saturated fatty acid widely present in human milk, fish, seeds, and cerebrosides in the cell membranes of the nervous system. Heneicosanoic acid can form Langmuir monolayers and is often used as a model to study lipid self-assembly and disassembly processes in biological membranes and drug delivery systems. In the low-temperature L'2 and CS crystalline phases, Heneicosanoic acid undergoes local oscillations, which in turn drive the spontaneous formation and expulsion of micelles and vesicles.
For research use only. We do not sell to patients.
- Purity: 98.0%
- CAS No.: 2363-71-5
- Formula: C21H42O2
- Molecular Weight:326.56
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month
All Endogenous Metabolite Isoforms
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Biological Activity
Heneicosanoic acid (2 h; 5.4 °C) forms micelles and small unilamellar vesicles (average size 9.16 nm) at 5.4 °C, with a height difference of 13 to 15 Å between the L′2 and CS crystalline phases[2].
Heneicosanoic acid (5.4-6.4 °C; 12.5-22 mN/m) forms micelles (5.38 to 5.46 nm), unilamellar vesicles (10.76 to 16.13 nm), oligolamellar vesicles (16.13 to 16.37 nm), and multilamellar vesicles (>21.51 nm) at 5.4 to 6.4 °C and 12.5 to 22 mN/m[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 2363-71-5
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Appearance Solid
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Molecular Weight 326.56
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Formula C21H42O2
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Color White to off-white
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SMILES
CCCCCCCCCCCCCCCCCCCCC(O)=O
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Structure Classification
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Initial Source
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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
Ethanol : 14.29 mg/mL (43.76 mM; Need ultrasonic)
DMSO : 3.33 mg/mL (10.20 mM; ultrasonic and warming and heat to 60°C; 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)
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% EtOH 90% Corn Oil
Solubility: ≥ 1.43 mg/mL (4.38 mM); Clear solution
This protocol yields a clear solution of ≥ 1.43 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Taking 1 mL working solution as an example, add 100 μL EtOH stock solution (14.3 mg/mL) to 900 μL Corn oil, and mix evenly.
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.
Purity & Documentation
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Data Sheet (266 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
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 / Ethanol | 1 mM | 3.0622 mL | 15.3111 mL | 30.6222 mL | 76.5556 mL |
| 5 mM | 0.6124 mL | 3.0622 mL | 6.1244 mL | 15.3111 mL | |
| 10 mM | 0.3062 mL | 1.5311 mL | 3.0622 mL | 7.6556 mL | |
| Ethanol | 15 mM | 0.2041 mL | 1.0207 mL | 2.0415 mL | 5.1037 mL |
| 20 mM | 0.1531 mL | 0.7656 mL | 1.5311 mL | 3.8278 mL | |
| 25 mM | 0.1225 mL | 0.6124 mL | 1.2249 mL | 3.0622 mL | |
| 30 mM | 0.1021 mL | 0.5104 mL | 1.0207 mL | 2.5519 mL | |
| 40 mM | 0.0766 mL | 0.3828 mL | 0.7656 mL | 1.9139 mL |