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Ionizable lipids / Di-n-decyldimethylammonium Bromide(DDAB)
Di-n-decyldimethylammonium Bromide(DDAB) chemical structure
Product imageResearch use only
CAT. NO. DC66286

Di-n-decyldimethylammonium Bromide(DDAB)

Ionizable lipid for LNP and nucleic-acid delivery research.

Pack size & price

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

Description & Application

DDAB, also known as dodecyltrimethylammonium bromide, is a cationic surfactant with specific solubility, stability, and storage conditions. 1. Solubility: DDAB is soluble in water and organic solvents such as ethanol and chloroform. It forms clear solutions in water, but can become turbid at high concentrations or low temperatures. It has a higher solubility in organic solvents compared to CTAB. 2. Stability: DDAB is relatively stable under normal storage conditions. However, it can undergo degradation and lose its surfactant properties if exposed to extreme temperatures, humidity, or oxidizing agents for extended periods. It is important to store DDAB in a cool, dry place away from direct sunlight. 3. Storage conditions: DDAB should be stored in a tightly sealed container to prevent moisture absorption and contamination. It is recommended to store it at room temperature (around 20-25°C) or in a refrigerator (2-8°C) to maintain its stability and extend its shelf life.

CAS No.Not available
Chemical NameDi-n-decyldimethylammonium Bromide(DDAB)
SynonymsN-Decyl-N,N-dimethyldecan-1-aminium bromide;DI-N-DECYLDIMETHYLAMMONIUM BROMIDE;DIDECYLDIMETHYLAMMONIUM BROMIDE;DDAB-75;DDAB-80;1-Decanaminium, N-decyl-N,N-dimethyl-, bromide;Didecyldimethylammonium bromide (DDAB);didecyl(dimethyl)azanium,bromide;DDAB;decyldodecyldimethylammonium bromide;didecyldimethylamine,bromide;N,N-didecyl-N,N-dimethylammonium bromide;Didecyl Dimethyl Ammonium Bromide;72L098XL5Y;AK114154;didecyldimethylamine, bromide;Didecyldimonium bromide;C22H48BrN;DSSTox_CID_26528;DSSTox_RID_81693;DSSTox_GSID_46528;KSC491M5R;didecyl(dimethyl);Bis decyldimethyl ammonium bromide
SMILES[Br-].[N+](C([H])([H])[H])(C([H])([H])[H])(C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H]
FormulaC22H48BRN
M.Wt406.5272
Purity>98%
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.
PublicationNot available
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 mg24.5986 mL4.9197 mL2.4599 mL
25 mg61.4965 mL12.2993 mL6.1497 mL
50 mg122.9930 mL24.5986 mL12.2993 mL
100 mg245.9860 mL49.1972 mL24.5986 mL
250 mg614.9650 mL122.9930 mL61.4965 mL

Need a different pack size or technical document?

Contact our team with the catalog number and requested quantity.

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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.