DLin-MC3-DMA
Recommended because it shares a closely related research category or delivery context. Formulation and performance are product- and study-specific.
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Components are supplied separately; this is not a premixed LNP. RNA/cargo, buffer and formulation service are not included.
DLin-DMA is an ionizable amino lipid with cationic properties and a pKa of 6.7. It is widely utilized in lipid nanoparticle (LNP) formulations alongside helper lipids to enable efficient nucleic acid delivery.
| CAS No. | 871258-12-7 |
| Chemical Name | DLinDMA |
| Synonyms | DLinDMA;1,2-dilinoleyloxy-n,n-dimethyl-3-aminopropane;WJB25812;1,2-dilinoleyloxy-3-dimethylaminopropane;E74884;1-Propanamine, N,N-dimethyl-2,3-bis[(9Z,12Z)-9,12-octadecadienyloxy]- (9CI);N,N-Dimethyl-2,3-bis[(9Z,12Z)-9,12-octadecadien-1-yloxy]-1-propanamine (ACI);1,2-Dilinoleyloxy-N,N-dimethylaminopropane;N,N-Dimethyl-2,3-bis(((9Z,12Z)-octadec-9,12-dien-1-yl)oxy)propan-1-amine;N,N-Dimethyl-2,3-bis[(9Z,12Z)-octadeca-9,12-dienyloxy]propan-1-amine,D-LinDMA, D-Lin-DMA; |
| SMILES | O(CCCCCCCC/C=C\C/C=C\CCCCC)C(CN(C)C)COCCCCCCCC/C=C\C/C=C\CCCCC |
| Formula | C41H77NO2 |
| M.Wt | 616.072 |
| 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 | Carrasco MJ, Alishetty S, Alameh MG, et al. Ionization and structural properties of mRNA lipid nanoparticles influence expression in intramuscular and intravascular administration. Communications Biology. 2021;4:956. Semple SC, Akinc A, Chen J, et al. Rational design of cationic lipids for siRNA delivery. Nature Biotechnology. 2010;28:172-176. |
| Component | mol% | Role |
|---|---|---|
| DLin-DMA | 50 | Ionizable lipid |
| DSPC | 10 | Helper phospholipid |
| Cholesterol | 38.5 | Sterol |
| DMG-PEG2000 | 1.5 | PEG lipid |
| 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) |
|---|---|---|---|---|---|
| DLin-DMA | 50.000 | 87.1815 | 53.7101 | ||
| DSPC | 10.000 | 17.4363 | 13.7773 | ||
| Cholesterol | 38.500 | 67.1297 | 25.9557 | ||
| DMG-PEG2000 | 1.500 | 2.6154 | 6.5569 |
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.
| Parameter | DLin-DMA result | Source |
|---|---|---|
| DLS number diameter | 62.79 and 69.72 nm | Source Data Fig.3b |
| PDI | 0.246 and 0.249 | Source Data Fig.3b |
| Encapsulation efficiency | 72.95% and 74.72% | Source Data Fig.3d |
| TNS apparent LNP pKa | 6.66 | Source Data Fig.1d |
| Zeta-potential pKa / pI | 6.15 / 6.34 | Source Data Fig.1d |
| Water-soluble analogue pKa | 8.93 | Source Data Fig. 1d |
Carrasco et al. 2021 main Table 1 and Figs.1,3; Supplementary Data 1 'Figure 1d'!B2:G7 and Supplementary Data 3 'Figure 3b'!B2:F7, 'Figure 3d'!B2:F7
Original 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.
The product molecular weight is prefilled when available and remains editable. Confirm solvent compatibility and solubility before preparation.
Solvent volumes update from the molecular weight above.
| Mass | 1 mM | 5 mM | 10 mM |
|---|---|---|---|
| 10 mg | 16.2319 mL | 3.2464 mL | 1.6232 mL |
| 25 mg | 40.5797 mL | 8.1159 mL | 4.0580 mL |
| 50 mg | 81.1593 mL | 16.2319 mL | 8.1159 mL |
| 100 mg | 162.3187 mL | 32.4637 mL | 16.2319 mL |
| 250 mg | 405.7967 mL | 81.1593 mL | 40.5797 mL |
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