Ionizable Lipid 4
Version 1.b4f2573c · 2026-09-13
| CAS No. | Not available |
| Chemical Name | Ionizable Lipid 4 |
| Synonyms | 9,12-octadecadienoic acid, (9Z,12Z)-1,1′-[2-[[[[3-(diethylamino)propoxy]carbonyl]oxy]methyl]-1,3-propanediyl] ester,Ionizable Lipid-4 |
| SMILES | CCCCC/C=C\C/C=C\CCCCCCCC(OCC(COC(CCCCCCC/C=C\C/C=C\CCCCC)=O)COC(OCCCN(CC)CC)=O)=O |
| Formula | C48H85NO7 |
| M.Wt | 788.2 |
| Purity | >98% |
| Storage | Original product: up to 1 year under the storage conditions stated on the vial, kept tightly sealed. Stock solutions: aliquots at -20°C, generally up to one month. |
| Shipping condition | Ships from Shanghai. Pure lipid is stable during ice-pack transport. |
| Publication | Not available |
Ionizable lipid 4 is an ionizable cationic lipid (pKa = 6.1) and a hydrogen peroxide-induced rearrangement product of the cationic lipid CA-lipid 5.1 Charge-altering lipid nanoparticles (CALNPs) containing CA-lipid 5 and encapsulating siRNA against EGFP undergo hydrogen peroxide-induced removal of the phenylboronic acid groups from CA-lipid 5 in MCF-7 cells in vitro, generating ionizable lipid 4-containing LNPs with reduced positive charges at physiological pH, facilitating intracellular siRNA release and gene silencing. LNPs containing ionizable lipid 4 and encapsulating siRNA against PLK1 reduce tumor volume in an MCF-7 mouse xenograft model less effectively than CALNPs containing CA-lipid 5.
Specifications shown are product-page values, not batch test results.
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