306-O12B is an ionizable cationic lipid used to generate lipid nanoparticles (LNPs).

Physicochemical Properties

Molecular Formula	C59H115N3O8S8
Molecular Weight	1251.08
Exact Mass	1249.644
CAS #	2566523-06-4
PubChem CID	155374947
Appearance	Colorless to light yellow liquid
LogP	16.8
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	19
Rotatable Bond Count	68
Heavy Atom Count	78
Complexity	1140
Defined Atom Stereocenter Count	0
InChi Key	FTXIINBPTFOCHN-UHFFFAOYSA-N
InChi Code	InChI=1S/C59H115N3O8S8/c1-6-10-14-18-22-26-48-71-75-52-44-67-56(63)32-40-61(41-33-57(64)68-45-53-76-72-49-27-23-19-15-11-7-2)38-30-36-60(5)37-31-39-62(42-34-58(65)69-46-54-77-73-50-28-24-20-16-12-8-3)43-35-59(66)70-47-55-78-74-51-29-25-21-17-13-9-4/h6-55H2,1-5H3
Chemical Name	2-(octyldisulfanyl)ethyl 3-[3-[3-[bis[3-[2-(octyldisulfanyl)ethoxy]-3-oxopropyl]amino]propyl-methylamino]propyl-[3-[2-(octyldisulfanyl)ethoxy]-3-oxopropyl]amino]propanoate
HS Tariff Code	2934.99.9001
Storage	Powder-20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Shipping Condition	Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity

References

[1]. Lipid nanoparticle-mediated codelivery of Cas9 mRNA and single-guide RNA achieves liver-specific in vivo genome editing of Angptl3. Proc Natl Acad Sci U S A. 2021;118(10):e2020401118.

Solubility Data

Solubility (In Vitro)

DMSO: 100 mg/mL (79.93 mM)

Solubility (In Vivo)

Solubility in Formulation 1: ≥ 2.5 mg/mL (2.00 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), suspension solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: ≥ 2.5 mg/mL (2.00 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), suspension solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. Solubility in Formulation 3: ≥ 2.5 mg/mL (2.00 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.  (Please use freshly prepared in vivo formulations for optimal results.)

Preparing Stock Solutions		1 mg	5 mg	10 mg
	1 mM	0.7993 mL	3.9965 mL	7.9931 mL
	5 mM	0.1599 mL	0.7993 mL	1.5986 mL
	10 mM	0.0799 mL	0.3997 mL	0.7993 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.