Quaternary ammonium salts
Medchemexpress LLC Tetramethylammonium hydrogensulfate | 80526-82-5 | MFCD00036149 | 171.22 g/mol | C4H13NO4S | 100 G
Tetramethylammonium hydrogensulfate is an organic salt used as a reagent in laboratory research that provides the tetramethylammonium cation paired with a hydrogensulfate (bisulfate) anion. It is used in synthesis and analytical workflows where tetramethylammonium salts are required.
- Used as a reagent for organic synthesis and phase-transfer catalysis.
- Suitable for ion-pair chromatography and other analytical applications.
- Molecular formula C4H13NO4S and molecular weight 171.22 g/mol.
- Available as a 100 G packaged reagent.
Medchemexpress LLC Choline bitartrate | 87-67-2 | MFCD00036332 | 98.0% | 253.25 g/mol | C9H19NO7 | 1 ML
Choline bitartrate is a research-grade methyl donor and precursor to the neurotransmitter acetylcholine, supplied as a ready-to-use 10 mM solution (1 mL) in DMSO. It is used in biochemical and cellular studies involving lipid metabolism, one-carbon/methylation pathways, and neurotransmission. CAS 87-67-2; typical purity 98.0%.
- Prepared 10 mM solution for convenient dosing and reduced prep time.
- High purity for reproducible experimental results.
- Supplied in DMSO for compatibility with common assay systems.
- Useful as a methyl donor in metabolic and epigenetic studies.
- Acts as a precursor to acetylcholine for neurotransmission research.
Sigma Aldrich Fine Chemicals Biosciences Tetraethylammonium chloride, 56-34-8, MFCD00011828, 100 g
Linear Formula: (C2H5)4N(Cl), Molecular Weight: 165.70, ≥98% (titration), color: white to light yellow, Synonym: TEA chloride.
Medchemexpress LLC D13-9001 | 957471-96-4 | 99.9% | 693.78 | C31H39N11O6S | 5MG
D13-9001 is a small-molecule inhibitor of bacterial efflux pump subunits AcrB and MexB, supplied for research applications to investigate efflux-mediated antibiotic resistance. The compound has a molecular formula of C31H39N11O6S, a molecular weight of 693.78, and is offered at high reported purity for in vitro studies.
- Inhibits AcrB and MexB efflux pump subunits.
- Supports studies of antibiotic resistance mechanisms.
- High purity suitable for analytical and biological assays.
- Molecular weight 693.78 and formula C31H39N11O6S.
- Available in small-molecule pack sizes including 5 mg.
- For research use only; not for human or clinical use.
Medchemexpress LLC Tetrabutylammonium trifluoromethanesulfonate | 35895-70-6 | MFCD00042585 | 98.0% | 391.53 g/mol | C17H36F3NO3S | 10 G
Tetrabutylammonium trifluoromethanesulfonate is a quaternary ammonium salt used as a reagent and phase-transfer catalyst in organic synthesis and biochemical assays. It provides a lipophilic tetrabutylammonium cation paired with a non-coordinating trifluoromethanesulfonate anion, enabling solubilization of ionic species in organic media.
- Purity 98.0%.
- Molecular weight 391.53 g/mol.
- Chemical formula C17H36F3NO3S.
- CAS number 35895-70-6.
- Store at 4°C, sealed and away from moisture.
- Available in small pack sizes for laboratory use.
Pfaltz & Bauer Tetramethylammonium Fluoride 9 5G CAS# 17787-40-5
Tetramethylammonium Fluoride 9 5G CAS# 17787-40-5. This product is non-Anhydrous
Sigma Aldrich Fine Chemicals Biosciences Carbamoylcholine chloride, 51-83-2, MFCD00012011, 1g
Linear Formula NH2COOCH2CH2N(Cl)(CH3)3, ≥98% (titration), Molecular Weight 182.65, crystalline, Synonym: (2-Hydroxyethyl)trimethylammonium chloride carbamate, Carbachol, Carbamylcholine chloride.
Cayman Chemical trns-VaccenIc AcId-d13 1mg
An internal standard for the quantification of trans-vaccenic acid by GC- or LC-MS
Research Products International Corp Choline Chloride, 250 Grams
- CAS Number: 67-48-1
- Molecular Formula: C5H14NOCl
- Molecular Weight: 139.6