DLin-MC3-DMA
Recommended because it shares a closely related research category or delivery context. Formulation and performance are product- and study-specific.
View product →
DODMA, also known as MBN 305A is a a cationic lipid containing the unsaturated long-chain (18:1) oleic acid inserted at both the sn-1 and sn-2 positions. It has been used in the composition of lipospomes formulated as stable nucleic acid lipid particles that can encapsulate siRNA or other small molecules to be used for drug delivery
| CAS No. | 104162-47-2 |
| Chemical Name | DODMA |
| Synonyms | MBN 305A; MBN305A; MBN-305A; DODMA; |
| SMILES | CN(CC(OCCCCCCCC/C=C\CCCCCCCC)COCCCCCCCC/C=C\CCCCCCCC)C |
| Formula | C41H81NO2 |
| M.Wt | 620.104 |
| Purity | >95% by ELSD-HPLC |
| Storage | Pure form: −20 °C, 1 year; In solvent: −80 °C, 6 months; −20 °C, 1 month. Sealed and protected from light. |
| Shipping condition | Ships from Shanghai. Pure lipid is stable during ice-pack transport. |
| Publication | Passos Gibson V, et al. Modulating the Nature of Ionizable Lipids and Number of Layers in Hyaluronan-Decorated Lipid Nanoparticles for In Vitro Delivery of RNAi. Pharmaceutics. 2024;16(4):563. |
| Component | mol% | Role |
|---|---|---|
| DODMA | 50 | Ionizable lipid |
| Cholesterol | 39 | Sterol |
| DOPE | 11 | Helper phospholipid |
| Reported total | 100 | Source values retained |
Composition retained from the cited study below. Research planning aid only. Results cover lipid component weights and do not include RNA, buffer, solvent, process loss or an N/P ratio.
| Component | Molecular weight | Molar parts | Normalized mol% | Amount (µmol) | Weight (mg) |
|---|---|---|---|---|---|
| DODMA | 50.000 | 92.1335 | 57.1323 | ||
| Cholesterol | 39.000 | 71.8641 | 27.7863 | ||
| DOPE | 11.000 | 20.2694 | 15.0814 |
Calculated total: 100.0000 mg lipid.
Calculated catalog planning quantities; RNA, solvent and process loss are excluded. DMG-PEG2000 uses 2507. Component mass = total lipid mass × molar parts × molecular weight / sum(parts × molecular weight). This conversion does not infer N/P.
| Measurement | Initial core | Three-layer HA-LNP |
|---|---|---|
| Diameter (nm) | 146 ± 1 | 177 ± 2 |
| PDI | 0.27 ± 0.01 | 0.18 ± 0.02 |
| RNA assay (%) | 90 ± 1 (core EE) | 88 ± 1 (layer RNA; indirect) |
Results 3.1; Fig.1. Mean ± SD. Core EE and layer-associated RNA are different assays.
The 50/39/11 mol% table covers lipid core components only. To obtain the measured three-layer particles, 7 microlitres of 20 micromolar siRNA, 1 microlitre of 2 mg/mL poly-L-arginine and 5 microlitres of 5 mg/mL hyaluronic acid were added sequentially to 14.1 microlitres core suspension.
Ten minutes at room temperature after each layer · Methods 2.2No significant loss of cell viability was reported for the three-layer particles at 180 nM siRNA in the 48 h GL261-Luc assay. This is not systemic or long-term safety evidence.
WST-8 viability alongside luciferase assay · Methods 2.5; Results 3.1; Fig.1DOriginal publication figures illustrating the cited formulation and biological results. Select an image to view it at full size.

DLinDMA (labelled DLin) is compared with KC2, MC3, DODMA and DODAP. Luciferase expression and cell viability are shown across mRNA doses; the particle-size and encapsulation measurements refer to the same study formulations. HEK293 cells; FLuc mRNA; N/P 4; 25–200 ng mRNA; 24-hour cell assessment; mean ± SD, n=3.
Carrasco et al. (2021), Communications Biology, Figure 3. CC BY 4.0. Original figure unchanged. Original article / figure · CC BY 4.0. Unmodified complete original figure; displayed at responsive size.

DLinDMA (DLin), MC3, DODMA and DODAP are individually labelled alongside KC2. The relative performance changes between intramuscular and intravenous administration; results should be read within the route and time point shown. 5 µg FLuc mRNA per mouse; N/P 4; IM or IV; measurements at 4 and 24 hours.
Carrasco et al. (2021), Communications Biology, Figure 4. CC BY 4.0. Original figure unchanged. Original article / figure · CC BY 4.0. Unmodified complete original figure; displayed at responsive size.

Original panels compare DODMA-, MC3- and DODAP-based hyaluronan-decorated LNPs. Zeta potential, encapsulation-assay fluorescence and luciferase silencing are shown with their original controls. GL261-Luc cells; 180 nM siRNA; 48 h. Bars show luciferase activity and connected points show viability, normalized to untreated cells.
Passos Gibson V et al. (2024). Layered LNP properties and cell silencing. Original article / figure · CC BY 4.0. Panels B-D cropped from the publisher PDF, page 5; panel A omitted. Original axes, labels, controls and statistics retained.

Original figure compares DODMA and MC3 formulations with luciferase-directed siRNA placed in different polyelectrolyte layers. The effect of layer placement is specific to this HA-LNP system. GL261-Luc cells; 180 nM siRNA; 48 h. Scrambled siRNA in the core; first- versus third-layer siLuc placement.
Passos Gibson V et al. (2024). Cell silencing with five-layer HA-LNPs. Original article / figure · CC BY 4.0. Complete figure extracted from publisher PDF, page 8; surrounding article text omitted; plotted content unchanged.
The product molecular weight is prefilled when available and remains editable. Confirm solvent compatibility and solubility before preparation.
Lipid-core weights only (50/39/11 mol%). RNA, poly-L-arginine and hyaluronic acid are additional; coated-particle results cannot be assumed for the core alone. N/P 4 applies only before layering.
Solvent volumes update from the molecular weight above.
| Mass | 1 mM | 5 mM | 10 mM |
|---|---|---|---|
| 10 mg | 16.1263 mL | 3.2253 mL | 1.6126 mL |
| 25 mg | 40.3158 mL | 8.0632 mL | 4.0316 mL |
| 50 mg | 80.6316 mL | 16.1263 mL | 8.0632 mL |
| 100 mg | 161.2633 mL | 32.2527 mL | 16.1263 mL |
| 250 mg | 403.1582 mL | 80.6316 mL | 40.3158 mL |
Contact our team with the catalog number and requested quantity.