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Ionizable lipids / S-Ac7-DOG
S-Ac7-DOG chemical structure
Product imageResearch use only
CAT. NO. DC67563Featured

S-Ac7-DOG

Ionizable lipid for LNP and nucleic-acid delivery research.

Pack size & price

USD
TotalUS$700
We match the best price and quality on market.
Ships from ShanghaiIce-pack transportPure lipid recommended
Product overview

Description & Application

S-Ac7-DOg​​ is an ​​ionizable lipid​​ engineered for optimized mRNA delivery to the retina, featuring a ​​sulfur-based ester bond​​ (S-Ac) and ​​dual oleyl glyceride chains​​ (DOg). Its pKa (~6.74) is finely tuned to enhance ​​endosomal escape​​ in acidic environments, enabling efficient cytosolic mRNA release. Unlike traditional lipids (e.g., C12-200, MC3), S-Ac7-DOg incorporates ​​biodegradable ester linkages​​ that hydrolyze intracellularly, minimizing lipid accumulation and reducing innate immune activation. In vitro, S-Ac7-DOg LNPs achieved >80% transfection efficiency in retinal cells (ARPE-19, MIO-M1) with ​​negligible cytokine secretion​​, outperforming MC3 and rivaling C12-200 while avoiding the latter’s high immunogenicity. In vivo, intravitreal delivery in mice showed ​​robust protein expression​​ in the optic nerve head (ONH) and Müller glia (75–100% of eyes), sustained for ≥7 days. Critically, it induced the ​​lowest immunogenicity​​ among tested lipids: minimal leukocyte infiltration (<1.5-fold vs. PBS), no microglial reactivity, and reduced GFAP upregulation.

CAS No.Not available
Chemical NameS-Ac7-DOG
SynonymsS Ac7 DOG;S-Ac7-DOG;EX-A8824;S Ac7 DOG
SMILESS(CCOC(NCCN1CCCCCC1)=O)SCCOC(NCC(COC(CCCCCCC/C=C\CCCCCCCC)=O)OC(CCCCCCC/C=C\CCCCCCCC)=O)=O
FormulaC53H97N3O8S2
M.Wt968.48
PurityELSD-HPLC>95%
StoragePure form: −20 °C, 1 year; In solvent: −80 °C, 6 months; −20 °C, 1 month. Sealed and protected from light.
Shipping conditionShips from Shanghai. Pure lipid is stable during ice-pack transport.
PublicationLipid nanoparticle composition for adjuvant formulation modulates disease after influenza virus infection in QIV vaccinated mice-https://www.biorxiv.org/content/10.1101/2024.01.14.575599v1
Laboratory planning

Solution Calculators

The product molecular weight is prefilled when available and remains editable. Confirm solvent compatibility and solubility before preparation.

Mass = concentration × volume × molecular weight
Enter any three values to calculate the fourth.
C₁V₁ = C₂V₂
Enter any three values to calculate the fourth.
Preparing stock solutions

Quick preparation table

Solvent volumes update from the molecular weight above.

Mass1 mM5 mM10 mM
10 mg10.3255 mL2.0651 mL1.0325 mL
25 mg25.8136 mL5.1627 mL2.5814 mL
50 mg51.6273 mL10.3255 mL5.1627 mL
100 mg103.2546 mL20.6509 mL10.3255 mL
250 mg258.1365 mL51.6273 mL25.8136 mL

Need a different pack size or technical document?

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Handling guidance

Shipping, storage and sampling

How is the lipid shipped, and how should I store it?
We generally ship the neat (undissolved) lipid compound rather than an ethanol solution. The neat lipid is stable during transport with ice packs, and shipments originate from Shanghai. Pure form: store at −20 °C for up to 1 year. In solvent: store at −80 °C for up to 6 months or at −20 °C for up to 1 month. Keep sealed and protected from light. Avoid repeated thaw cycles for best results.
Pure lipid or solution — which should I choose?
Pure lipid is generally more stable during shipping and storage, so we usually recommend the pure form. A solution in ethanol or chloroform can be supplied when required by your workflow. Tell us the intended application, solvent and target concentration so the most suitable format can be confirmed.
How should I measure a small amount of oily or viscous lipid?
Ionizable lipids are often oily liquids or viscous semisolids, so material can be lost during repeated weighing or transfer. For a small pack, dissolve the entire quantity and aliquot it volumetrically. For example, add 1 mL ethanol to 25 mg lipid to prepare a 25 mg/mL stock, then use a pipette to withdraw the required amount. For quantities above 100 mg, direct weighing with an analytical balance may be more practical. Always confirm solvent compatibility and solubility first.
Can you support formulation optimization and scale-up?
Yes. Share the RNA cargo, target tissue, administration route, formulation method and assay plan. Our team can discuss starting molar ratios, N/P ratio and scale-up requirements for research workflows.