1. Dihomo-γ-linolenic acid

Dihomo-γ-linolenic acid  (Synonyms: DGLA; all-cis-8,11,14-Eicosatrienoic acid)

Cat. No.: HY-A0143 Purity: ≥98.0%
COA Handling Instructions

Dihomo-γ-linolenic acid (DGLA) is a 20-carbon ω-6 fatty acid, with anti-inflammatory and anti-proliferative activities. Dihomo-γ-linolenic acid attenuates atherosclerosis in the apolipoprotein E deficient mouse model system.

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Dihomo-γ-linolenic acid Chemical Structure

Dihomo-γ-linolenic acid Chemical Structure

CAS No. : 1783-84-2

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5mg (326.28 mM * 50 μL in Ethanol) USD 50 In-stock
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Based on 2 publication(s) in Google Scholar

Other Forms of Dihomo-γ-linolenic acid:

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Description

Dihomo-γ-linolenic acid (DGLA) is a 20-carbon ω-6 fatty acid, with anti-inflammatory and anti-proliferative activities. Dihomo-γ-linolenic acid attenuates atherosclerosis in the apolipoprotein E deficient mouse model system[1][2][3].

IC50 & Target

Endogenous Metabolite

In Vitro

Dihomo-γ-linolenic acid attenuates pro-inflammatory gene expression in human and mouse macrophages[2].
Dihomo-γ-linolenic acid (50 μM; 24 hours) attenuates IFN-γ induced phosphorylation of STAT1 on serine 727[2].
Dihomo-γ-linolenic acid attenuates IL-1β and TNF-α induced MCP-1 and ICAM-1 expression in human macrophages[2].
Dihomo-γ-linolenic acid attenuates chemokine-driven monocytic migration and macrophage foam cell formation[2].
Dihomo-γ-linolenic acid attenuates the expression of SR-A and CD36 in human macrophages[2].
Dihomo-γ-linolenic acid modulates mitochondrial respiration[2].
Dihomo-γ-linolenic acid modulates the properties of endothelial cells and VSMC[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Western Blot Analysis[2]

Cell Line: THP-1 macrophages
Concentration: 50 μM (pre-treated)
Incubation Time: 24 hours
Result: Attenuated IFN-γ induced phosphorylation of STAT1 on serine 727.
In Vivo

Dihomo-γ-linolenic acid (8 mg/mouse; i.g; twice a week; for 35 days) inhibits growth of xenograft tumors in mice bearing human pancreatic cancer cells (BxPC-3) transfected with delta-5-desaturase shRNA[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: Female nude mice (48 four-week old)[3]
Dosage: 8 mg/mouse
Administration: Oral gavage, twice a week, for 35 days
Result: Suppressed metastasis potential in D5D-KD tumors.
Molecular Weight

306.48

Formula

C20H34O2

CAS No.
Appearance

Liquid

Color

Colorless to light yellow

SMILES

CCCCC/C=C\C/C=C\C/C=C\CCCCCCC(O)=O

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Solution, -20°C, 2 years

Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (326.29 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

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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.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.5 mg/mL (8.16 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 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% Corn Oil

    Solubility: ≥ 2.5 mg/mL (8.16 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 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 DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

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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Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
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

Purity: ≥99.0%

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 3.2629 mL 16.3143 mL 32.6286 mL 81.5714 mL
5 mM 0.6526 mL 3.2629 mL 6.5257 mL 16.3143 mL
10 mM 0.3263 mL 1.6314 mL 3.2629 mL 8.1571 mL
15 mM 0.2175 mL 1.0876 mL 2.1752 mL 5.4381 mL
20 mM 0.1631 mL 0.8157 mL 1.6314 mL 4.0786 mL
25 mM 0.1305 mL 0.6526 mL 1.3051 mL 3.2629 mL
30 mM 0.1088 mL 0.5438 mL 1.0876 mL 2.7190 mL
40 mM 0.0816 mL 0.4079 mL 0.8157 mL 2.0393 mL
50 mM 0.0653 mL 0.3263 mL 0.6526 mL 1.6314 mL
60 mM 0.0544 mL 0.2719 mL 0.5438 mL 1.3595 mL
80 mM 0.0408 mL 0.2039 mL 0.4079 mL 1.0196 mL
100 mM 0.0326 mL 0.1631 mL 0.3263 mL 0.8157 mL
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Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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Dihomo-γ-linolenic acid
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