Reagenzien und Instrumente für die Immunologie Zellbiologie und Molekularbiologie
 
> DOTMA [104872-42-6]

DOTMA [104872-42-6]

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Katalog-Nummer HY-139200-100mg

Size : 100mg

Marke : MedChemExpress

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DOTMA is a cationic lipid that has been used as a non-viral vector for gene therapy. DOTMA is used as a component of liposomes to encapsulate siRNA, microRNA, and oligonucleotides and for in vitro gene transfection. DOTMA promotes effective interaction between liposomes and cell membranes by inducing positive charge on the liposomes. DOTMA showed good gene transfection effect both in vitro and in vivo.

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DOTMA Chemische Struktur

DOTMA Chemische Struktur

CAS. Nr. : 104872-42-6

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

Based on 1 publication(s) in Google Scholar

Beschreibung

DOTMA is a cationic lipid that has been used as a non-viral vector for gene therapy. DOTMA is used as a component of liposomes to encapsulate siRNA, microRNA, and oligonucleotides and for in vitro gene transfection. DOTMA promotes effective interaction between liposomes and cell membranes by inducing positive charge on the liposomes. DOTMA showed good gene transfection effect both in vitro and in vivo[1][2][3][4][5].

Molekulargewicht

670.57

Formel

C42H84ClNO2
CAS. Nr.

104872-42-6
Appearance

Solid

Color

White to light yellow

SMILES

CCCCCCCC/C=C/CCCCCCCCOCC(C[N+](C)(C)C)OCCCCCCCC/C=C/CCCCCCCC.[Cl-]
Versand

Room temperature in continental US; may vary elsewhere.
Speicherung

-20°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

Lösungsmittel & Löslichkeit
In Vitro: 

DMSO : 12.5 mg/mL (18.64 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)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.4913 mL 7.4563 mL 14.9127 mL
5 mM 0.2983 mL 1.4913 mL 2.9825 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 (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molaritätsrechner

  • Verdünnungsrechner

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

    Solubility: ≥ 2.5 mg/mL (3.73 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% (20% SBE-β-CD in Saline)

    Solubility: 2.5 mg/mL (3.73 mM); Suspended solution; Need ultrasonic

    This protocol yields a suspended solution of 2.5 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.

    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:

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).

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

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.
Reinheit & Dokumentation

Purity: ≥98.0%

COA (237 KB) HNMR (290 KB) MS (179 KB)

Handling Instructions (2659 KB)
Verweise

  • [1]. Aime S, et al. Properties, solution state behavior, and crystal structures of chelates of DOTMA. Inorg Chem. 2011;50(17):7955-7965.  [Content Brief]

    [2]. Bhavsar D, et al. Translational siRNA therapeutics using liposomal carriers: prospects & challenges. Curr Gene Ther. 2012;12(4):315-332.  [Content Brief]

    [3]. Ren T, et al. Structural basis of DOTMA for its high intravenous transfection activity in mouse. Gene Ther. 2000;7(9):764-768.  [Content Brief]

    [4]. Wang X, et al. Enhanced hepatic delivery of siRNA and microRNA using oleic acid based lipid nanoparticle formulations. J Control Release. 2013 Dec 28;172(3):690-8.  [Content Brief]

    [5]. Huang QD, et al. Cyclen-based cationic lipids for highly efficient gene delivery towards tumor cells. PLoS One. 2011;6(8):e23134.  [Content Brief]

  • [1]. Aime S, et al. Properties, solution state behavior, and crystal structures of chelates of DOTMA. Inorg Chem. 2011;50(17):7955-7965.

    [2]. Bhavsar D, et al. Translational siRNA therapeutics using liposomal carriers: prospects & challenges. Curr Gene Ther. 2012;12(4):315-332.

    [3]. Ren T, et al. Structural basis of DOTMA for its high intravenous transfection activity in mouse. Gene Ther. 2000;7(9):764-768.

    [4]. Wang X, et al. Enhanced hepatic delivery of siRNA and microRNA using oleic acid based lipid nanoparticle formulations. J Control Release. 2013 Dec 28;172(3):690-8.

    [5]. Huang QD, et al. Cyclen-based cationic lipids for highly efficient gene delivery towards tumor cells. PLoS One. 2011;6(8):e23134.

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 (sealed storage, away from moisture). 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 1.4913 mL 7.4563 mL 14.9127 mL 37.2817 mL
5 mM 0.2983 mL 1.4913 mL 2.9825 mL 7.4563 mL
10 mM 0.1491 mL 0.7456 mL 1.4913 mL 3.7282 mL
15 mM 0.0994 mL 0.4971 mL 0.9942 mL 2.4854 mL
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DOTMA Related Classifications

Help & FAQs

Keywords:

DOTMA104872-42-6LiposomeCationicLipidNon-viralVectorsiRNAMicroRNAsTransfectionInhibitorinhibitorinhibit

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