TPABr, 98%, is a biochemical compound that could be utilized as a biomaterial or organic/chemical reagent for biomedical research.

Physicochemical Properties

Molecular Formula	C12H28BRN
Molecular Weight	266.26
Exact Mass	265.14
CAS #	1941-30-6
PubChem CID	74745
Appearance	White to off-white solid powder
Melting Point	266-272 °C
LogP	0.447
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	1
Rotatable Bond Count	8
Heavy Atom Count	14
Complexity	80.2
Defined Atom Stereocenter Count	0
SMILES	[Br-].[N+](C([H])([H])C([H])([H])C([H])([H])[H])(C([H])([H])C([H])([H])C([H])([H])[H])(C([H])([H])C([H])([H])C([H])([H])[H])C([H])([H])C([H])([H])C([H])([H])[H]
InChi Key	BGQMOFGZRJUORO-UHFFFAOYSA-M
InChi Code	InChI=1S/C12H28N.BrH/c1-5-9-13(10-6-2,11-7-3)12-8-4;/h5-12H2,1-4H3;1H/q+1;/p-1
Chemical Name	tetrapropylazanium;bromide
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 Note: Please store this product in a sealed and protected environment, avoid exposure to moisture.
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

Additional Infomation

Tetrapropylammonium bromide is a white to off-white crystalline solid. (NTP, 1992) Tetrapropylammonium bromide is a quarternary ammonium bromide salt in which the cation has four propyl substituents around the central nitrogen. It has a role as a potassium channel blocker. It is a bromide salt and a quaternary ammonium salt. It contains a tetrapropylammonium.

Solubility Data

Solubility (In Vitro)

DMSO: 100 mg/mL (375.57 mM)

Solubility (In Vivo)

Solubility in Formulation 1: ≥ 2 mg/mL (7.51 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), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.0 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 mg/mL (7.51 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), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.0 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 mg/mL (7.51 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 20.0 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	3.7557 mL	18.7786 mL	37.5573 mL
	5 mM	0.7511 mL	3.7557 mL	7.5115 mL
	10 mM	0.3756 mL	1.8779 mL	3.7557 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.