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> DOPE [4004-05-1]

DOPE [4004-05-1]

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Cat# HY-112005-100mg

Size : 100mg

Brand : MedChemExpress

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DOPE (Dioleoylphosphatidylethanolamine) is a neutral helper lipid for cationic liposome and combines with cationic phospholipids to improve transfection efficiency of naked siRNA.

For research use only. We do not sell to patients.

DOPE Chemical Structure

DOPE Chemical Structure

CAS No. : 4004-05-1

This product is a controlled substance and not for sale in your territory.

Based on 1 publication(s) in Google Scholar

Description

DOPE (Dioleoylphosphatidylethanolamine) is a neutral helper lipid for cationic liposome and combines with cationic phospholipids to improve transfection efficiency of naked siRNA[1].

IC50 & Target

Human Endogenous Metabolite

 

In Vitro

In this study, each siRNA is encapsulated in LNP (cationic lipid-A: PEG2000-DMPE: DOPE = 47.8: 5.18: 47.1 molar percent)[1].
With the neutral lipid for the LNP is DOPE, LNP exerts knock-down (KD) effecton macrophages and DCs and Liposome-containing DOPE shows fusogenicity[1].
LNP/siRNA significantly suppresses CD45 protein expression at an inhibition rate of 30% on macrophages and DCs but not on monocytes, neutrophils, plasmacytoid DCs, or B cells[1].
LNP has the potential to be an efficient siRNA delivery system not only for murine but also for human macrophages and DCs[1].

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

DOPE Related Antibodies
Molecular Weight

744.03

Formula

C41H78NO8P
CAS No.

4004-05-1
Appearance

Solid

Color

White to light yellow

SMILES

O=P(OC[C@H](OC(CCCCCCC/C=C\CCCCCCCC)=O)COC(CCCCCCC/C=C\CCCCCCCC)=O)(OCCN)O
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 50 mg/mL (67.20 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)

Ethanol : 10 mg/mL (13.44 mM; ultrasonic and warming and heat to 60°C)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.3440 mL 6.7202 mL 13.4403 mL
5 mM 0.2688 mL 1.3440 mL 2.6881 mL
View the 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.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

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% EtOH    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2 mg/mL (2.69 mM); Clear solution

    This protocol yields a clear solution of ≥ 2 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL EtOH stock solution (20.0 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% EtOH    90% (20% SBE-β-CD in Saline)

    Solubility: 2 mg/mL (2.69 mM); Suspended solution; Need ultrasonic

    This protocol yields a suspended solution of 2 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.

    Taking 1 mL working solution as an example, add 100 μL EtOH stock solution (20.0 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:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
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: ≥98.0%

COA (245 KB) HNMR (222 KB)

Handling Instructions (2659 KB)
References

  • [1]. Uemura Y, et al. The efficiency of lipid nanoparticles with an original cationic lipid as a siRNA delivery system for macrophages and dendritic cells.Pharm Dev Technol. 2019 Mar;24(3):263-268.  [Content Brief]

  • [1]. Uemura Y, et al. The efficiency of lipid nanoparticles with an original cationic lipid as a siRNA delivery system for macrophages and dendritic cells.Pharm Dev Technol. 2019 Mar;24(3):263-268.

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
Ethanol / DMSO 1 mM 1.3440 mL 6.7202 mL 13.4403 mL 33.6008 mL
5 mM 0.2688 mL 1.3440 mL 2.6881 mL 6.7202 mL
10 mM 0.1344 mL 0.6720 mL 1.3440 mL 3.3601 mL
DMSO 15 mM 0.0896 mL 0.4480 mL 0.8960 mL 2.2401 mL
20 mM 0.0672 mL 0.3360 mL 0.6720 mL 1.6800 mL
25 mM 0.0538 mL 0.2688 mL 0.5376 mL 1.3440 mL
30 mM 0.0448 mL 0.2240 mL 0.4480 mL 1.1200 mL
40 mM 0.0336 mL 0.1680 mL 0.3360 mL 0.8400 mL
50 mM 0.0269 mL 0.1344 mL 0.2688 mL 0.6720 mL
60 mM 0.0224 mL 0.1120 mL 0.2240 mL 0.5600 mL
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DOPE Related Classifications

  • Biochemical Assay Reagents
  • Drug Delivery
  • Inflammation/Immunology
  • Metabolic Enzyme/Protease
  • Liposome Endogenous Metabolite
Help & FAQs

Keywords:

DOPE4004-05-1Dioleoylphosphatidylethanolamine 1,2-Dioleoyl-sn-glycero-3-phosphoethanolamineLiposomeEndogenous MetabolitePEemulsifiertransfectionDNAliposomecationicsiRNAphospholipidknock-downInhibitorinhibitorinhibit

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