AA3-DLin
Based on 1 Customer Validation
AA3-DLin is a biodegradable ionizable cationic lipid (pKa = 5.8). AA3-DLin is used to combine mRNA with lipid nanoparticles (LNPs) for delivery, thereby achieving endosomal escape and cytoplasmic release. AA3-DLin can be used in research on type 2 diabetes, steroid-resistant asthma, lung cancer, ischemic stroke, breast cancer, melanoma, and COVID-19.
For research use only. We do not sell to patients.
- Purity: 99.0%
- CAS No.: 3027565-91-6
- Formula: C44H78N2O4
- Molecular Weight:699.10
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Storage:
Solution, -20°C, 2 years
Biological Activity
Description
In Vitro
AA3-DLin LNPs (0-64 µg/mL; 24 h) exhibit low cytotoxicity in differentiated C2C12 myotubes[1].
The AA3-DLin-based LNP formulation (4 h) demonstrates efficient cellular uptake across LLC, B16F10, and 4T1 cancer cell lines, and this uptake is not altered by nebulization[3].
The AA3-DLin-based LNP formulation (4-48 h) effectively mediates gene transfection and PD-L1 silencing in both murine and human lung cancer cell lines, and this efficacy is preserved after nebulization[3].
The AA3-DLin-based LNP formulation (8-72 h) effectively delivers mscFv to LLC, B16F10, and 4T1 cells, leading to intracellular expression of anti-DDR1 scFv and its sustained secretion[3].
AA3-Dlin LNPs (0.5-4 h) are efficiently internalized by HEK 293, HeLa, 4T1, and B16F10 cells in a time-dependent manner[5].
AA3-Dlin LNPs (0.5 μg/mL; 4 h) facilitate endosomal escape to release mRNA into the cytosol of HEK 293, HeLa, 4T1, and B16F10 cells[5].
The optimized A12 AA3-DLin LNP formulation (0.1 μg; 24 h) demonstrates superior in vitro mRNA transfection efficacy in Hek 293 cells compared to MC3 LNPs, lipofectamine 3000, and ALC-0315 LNPs, with no observed cytotoxicity[6].
AA3-DLin LNPs (72 h) demonstrate excellent mRNA delivery efficiency and can be used for mRNA vaccine development and gene therapy research[8].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
In Vivo
AA3-DLin (2-10 μg spike mRNA-loaded AA3-DLin vaccines; i.m.; prime at day 0 and boost at day 14) COVID-19 vaccines induce strong spike-specific antibody responses in a dose-dependent manner[6].
AA3-DLin LNPs are an excellent mRNA delivery platform that successfully induces strong immunogenicity in BALB/c mice, demonstrating potential for vaccine development and gene therapy[8].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 3027565-91-6
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Appearance Liquid
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Molecular Weight 699.10
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Formula C44H78N2O4
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Color Light yellow to yellow
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SMILES
CCCCC/C=C\C/C=C\CCCCCCCC(OCCN1CCN(CC1)CCOC(CCCCCCC/C=C\C/C=C\CCCCC)=O)=O
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Solution, -20°C, 2 years
Purity & Documentation
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Data Sheet (268 KB)
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SDS (251 KB)
- English - EN (251 KB)
- Français - FR (251 KB)
- Deutsch - DE (251 KB)
- Norwegian - NO (251 KB)
- Español - ES (251 KB)
- Swedish - SV (251 KB)
- Italian - IT (251 KB)
- Korean - KR (251 KB)
- Portuguese - PT (251 KB)
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Handling Instructions (2659 KB)
References
[3]. Hu B, et al. Modulating tumor collagen fiber alignment for enhanced lung cancer immunotherapy via inhaled RNA. Nature communications. 2025 Aug 30;16(1):8120. [Content Brief]
[5]. Li F, et al. mRNA lipid nanoparticle-mediated pyroptosis sensitizes immunologically cold tumors to checkpoint immunotherapy. Nature communications. 2023 Jul 15;14(1):4223. [Content Brief]
[6]. Li Z, et al. Enzyme-Catalyzed One-Step Synthesis of Ionizable Cationic Lipids for Lipid Nanoparticle-Based mRNA COVID-19 Vaccines. ACS nano. 2022 Nov 22;16(11):18936-18950. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)