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Tetramethylammonium bromide

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Tetramethylammonium bromide is a chemical compound with the formula (CH3)4N+Br-. It is a white crystalline solid that is soluble in water and organic solvents. Tetramethylammonium bromide is commonly used as a laboratory reagent and in various industrial applications.

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Lab products found in correlation

Hydrobromic acid, by Merck Group (3 mentions) Silver i bromide, by Merck Group (2 mentions) Copper 1 bromide, by Merck Group (2 mentions) Ethanol, by Merck Group (2 mentions) Methanol, by Merck Group (2 mentions) Methylene chloride, by Merck Group (1 mentions) Tetraphenylphosphonium bromide, by Merck Group (1 mentions) Tetramethylphosphonium bromide, by Merck Group (1 mentions) Tetraethylammonium bromide, by Merck Group (1 mentions) Triphenylphosphine, by Merck Group (1 mentions) Tetraphenylphosphonium chloride, by Merck Group (1 mentions) Hexachloroplatinic iv acid, by Merck Group (1 mentions) 2 4 dimethylbenzenethiol, by Merck Group (1 mentions) 1 adamantanethiol, by Merck Group (1 mentions) Tetra n octylammonium bromide, by Merck Group (1 mentions) Tetra n butylammonium bromide, by Merck Group (1 mentions) Sodium borohydride, by Merck Group (1 mentions) Silver nitrate, by Merck Group (1 mentions) Sodium tetraphenylborate, by Merck Group (1 mentions) Methionine sulfoximine, by Merck Group (1 mentions)

6 protocols using tetramethylammonium bromide

1

Synthesis of Brominated Compounds

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Copper(i) bromide (CuBr; ≥98%), silver(i) bromide (AgBr; 99%), tetramethylammonium bromide (TMAB; ≥98%) and hydrobromic acid (48 wt% in H2O; ≥99.99%) were purchased from Sigma-Aldrich. Acetone (HPLC grade), DMF (HPLC grade), DMSO (HPLC grade) and hypophosphorous acid (H3PO2; 50 wt% in H2O) were purchased from RANKEM (India). All chemicals were used without any further purification.
Hassan N., Nagaraja S., Saha S., Tarafder K, & Ballav N. (2024). Excitonic cuprophilic interactions in one-dimensional hybrid organic–inorganic crystals. Chemical Science, 15(11), 4075-4085.
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2

Synthesis and Characterization of Organometallic Complexes

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All reagents were purchased from Sigma-Aldrich and used without further purification: hexachloroplatinic(iv) acid (H2PtCl6·6H2O, 99.99%, metal basis), silver nitrate (AgNO3, 99%, metals basis), 2,4-dimethylbenzenethiol (PhMe2-SH, 99%), triphenylphosphine (PPh3, 99%), 1-adamantanethiol (AdmSH, C10H15-SH, 99%), sodium borohydride (NaBH4, 95%), sodium tetraphenylborate (NaBPh4, 98%), tetraphenylphosphonium bromide (PPh4Br, 98%), tetramethylphosphonium bromide (PMe4Br, 98%), tetraphenylphosphonium chloride (PPh4Cl, 98%), tetra-n-octylammonium bromide ([N(C8H17)4]Br, TOAB, 98%), tetra-n-heptylammonium bromide ([N(C7H15)4]Br, 98%), tetra-n-hexylammonium bromide ([N(C6H13)4]Br, 98%), tetra-n-amylammonium bromide ([N(C5H11)4]Br, 98%), tetra-n-butylammonium bromide ([N(C4H9)4]Br, 98%), tetra-n-propylammonium bromide ([N(C3H7)4]Br, 98%), tetraethylammonium bromide ([N(C2H5)4]Br, 98%), tetramethylammonium bromide ([N(CH3)4]Br, 98%), hydrobromic acid (HBr, 47.0–49.0%), methylene chloride (CH2Cl2, HPLC grade), methanol (CH3OH, HPLC), ethanol (CH3CH2OH, HPLC).
Kang X., Wei X., Wang S, & Zhu M. (2021). An insight, at the atomic level, into the polarization effect in controlling the morphology of metal nanoclusters. Chemical Science, 12(33), 11080-11088.
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3

Synthesis and Characterization of Hupresin

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Hupresin® was synthesized by Emilie David at CHEMFORASE, Mont-Saint-Aignan, France, emilie.david@chemforase.com. The ligand (Figure 1) is a custom-synthesized hybrid of tacrine and huperzine [12 (link), 14 (link)]. Materials were from the following sources: Ultraculture (Lonza 12–725F), methionine sulfoximine (Sigma 76078), tetramethylammonium bromide (Sigma 195758), Stericup Durapore (Millipore Merck, 1000 ml receiver bottle Cat No SCGPU11RE), Nalgene sterile filter unit with a 0.45 μm or 0.2 μm PES membrane (Thermo Scientific 167–0045 or 524–0020).
Lockridge O., David E., Schopfer L.M., Masson P., Brazzolotto X, & Nachon F. (2018). Purification of recombinant human butyrylcholinesterase on Hupresin®. Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 1102-1103, 109-115.
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4

Synthesis of Pd-Doped TiO2 Nanoparticles

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All chemicals were used as received. Rutile TiO2 (<5 μm, ≥99.9%), tetramethylammonium bromide (TMAB, ≥98.0%), NaNO3 (≥99.0%), sodium hydroxide (NaOH, 99.9%), hydrochloric acid (HCl, 37%), methanol (99.5%), and ethanol (99.5%) were purchased from Sigma--Aldrich. HNO3 solution containing Pd(NO3)2 (0.216 M) was purchased from Kojima Chemicals Co., Ltd. Tetraethyl orthosilicate (TEOS, >97.0%) was purchased from Tokyo Chemical Industry.
Takabayashi A., Kishimoto F., Tsuchiya H., Mikami H, & Takanabe K. (2022). Photocatalytic formation of a gas permeable layer selectively deposited on supported metal nanoparticles for sintering-resistant thermal catalysis. Nanoscale Advances, 5(4), 1124-1132.
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5

Synthesis of Brominated Compounds

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Copper(i) bromide (CuBr; ≥98%), silver(i) bromide (AgBr; 99%), tetramethylammonium bromide (TMAB; ≥98%) and hydrobromic acid (48 wt% in H2O; ≥99.99%) were purchased from Sigma-Aldrich. Acetone (HPLC grade), DMF (HPLC grade), DMSO (HPLC grade) and hypophosphorous acid (H3PO2; 50 wt% in H2O) were purchased from RANKEM (India). All chemicals were used without any further purification.
Hassan N., Nagaraja S., Saha S., Tarafder K, & Ballav N. (2024). Excitonic cuprophilic interactions in one-dimensional hybrid organic–inorganic crystals. Chemical Science, 15(11), 4075-4085.
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6

Synthesis of Platinum Nanocrystals

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Pt nanocrystals of 2 to 3 nm in diameter were synthesized by mixing 0.05 mmol (NH4)2Pt(II)Cl4 (99.995%; Sigma-Aldrich), 0.75 mmol tetramethylammonium bromide (98%; Sigma-Aldrich), 1 mmol of polyvinylpyrrolidone (M.W. 29,000; Sigma-Aldrich), and 10 ml of ethylene glycol in a three-neck round bottom flask. The mixture was heated to 160°C and kept at 160°C for 20 min. After cooling the solution to room temperature, 90 ml of acetone was added to precipitate the particles. The product was centrifuged at 4000 rpm for 5 min. The supernatant was discarded, and the Pt nanocrystals were redispersed in 5 mM Hepes buffer solution with pH 7.4.
Reboul C.F., Heo J., Machello C., Kiesewetter S., Kim B.H., Kim S., Elmlund D., Ercius P., Park J, & Elmlund H. (2021). SINGLE: Atomic-resolution structure identification of nanocrystals by graphene liquid cell EM. Science Advances, 7(5), eabe6679.
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