Quaternary ammonium salts
Selleck Chemical LLC Choline bitartrate S4703-100mg
Choline bitartrate (2-hydroxyethyl(trimethyl)azanium 2 3 4-trihydroxy-4-oxobutanoate) is a form of the nutrient choline which is found in foods Choline is necessary for normal liver and kidney function and a component of the neurotransmitter acetylcholine a chemical that facilitates communication between the nerves and muscles
Medchemexpress LLC D13-9001 | 957471-96-4 | 99.9% | 693.78 g·mol⁻¹ | C31H39N11O6S | 10MG
D13-9001 is a small-molecule bacterial efflux pump inhibitor that selectively targets RND-family transporters AcrB and MexB. It binds AcrB and MexB with reported KD values of 1.15 μM and 3.57 μM, respectively, and demonstrates antibiotic activity in vitro. The compound is supplied for research use in multiple pack sizes, including a 10 mg option.
- Inhibits AcrB and MexB efflux pump subunits.
- Measured KD values of 1.15 μM (AcrB) and 3.57 μM (MexB).
- Molecular weight 693.78 g·mol⁻¹ and formula C31H39N11O6S.
- High purity: 99.85% (typical).
- Suitable for in vitro antibiotic activity and efflux pump studies.
- Available in small research pack sizes, including 10 mg.
![Medchemexpress LLC Ethanaminium, N-(carboxymethyl)-2-([3R]-1-[8-([4-(1,1-dimethylethyl)-2-thiazolyl]amino)...) inner salt | 957471-96-4 | 99.9% | 693.78 | C31H39N11O6S | 100MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000239300.png-250.jpg)
Medchemexpress LLC Ethanaminium, N-(carboxymethyl)-2-([3R]-1-[8-([4-(1,1-dimethylethyl)-2-thiazolyl]amino)...) inner salt | 957471-96-4 | 99.9% | 693.78 | C31H39N11O6S | 100MG
D13-9001 is a small-molecule bacterial efflux pump inhibitor for biochemical and microbiology research into efflux-mediated antibiotic resistance. It selectively targets RND family efflux pump subunits AcrB and MexB, with reported binding affinities (KD) of 1.15 μM (AcrB) and 3.57 μM (MexB). The compound is provided as a high-purity solid suitable for preparing stock solutions and in-vitro assays.
- Potent inhibitor of AcrB and MexB efflux pump subunits.
- Demonstrates KD = 1.15 μM (AcrB) and KD = 3.57 μM (MexB).
- Exhibits antibacterial activity in vitro.
- High purity suitable for biochemical assays.
- Supplied as a solid for stock solution preparation.
- Available in multiple pack sizes including 100 mg.
Cell Signaling Technology Choline Kinase alpha (D5X9W) Rabbit mAb 20 ul
Choline Kinase alpha (D5X9W) Rabbit mAb 20 ul
Apexbio Technology LLC Hexamethonium Bromide 55-97-0 5g
Hexamethonium Bromide (CAS 55-97-0) is a bis-quaternary ammonium compound that acts as a selective antagonist of neuronal nicotinic acetylcholine receptors (nAChRs) located in autonomic ganglia By competitively inhibiting synaptic transmission at these receptors Hexamethonium Bromide effectively blocks ganglionic neurotransmission without significant effects on muscarinic receptors or neuromuscular junctions This property makes it a valuable tool in pharmacological studies investigating autonomic nervous system function and the physiological roles of ganglionic nAChRs in various experimental models
Apexbio Technology LLC NS 1643 448895-37-2 10mg
NS 1643 (CAS 448895-37-2) is a small-molecule partial agonist of the human hERG potassium channel exhibiting an EC50 of 10 5 M In murine models of triple-negative breast cancer (TNBC) NS 1643 has been shown to inhibit tumor growth via specific signaling pathways Experimental studies demonstrate that NS 1643 suppresses both migration and invasion of breast cancer cells Due to these properties NS 1643 serves as a valuable tool for investigating hERG channel modulation and its impact on cancer cell behavior with potential applications in preclinical oncology research
eMolecules Tetra-n-butylammonium salicylate | 22307-72-8 | MFCD00145388 | 5g
Combi-Blocks, Inc. | Tetra-n-butylammonium salicylate | 5g | 569297590 | QE-7383 | 95.000 | 22307-72-8 | MFCD00145388 | 379.585 | C23H41NO3
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Bioworld Choline Chloride, 100 g
Choline Chloride An acyl group acceptor Technical Information:Also known as (2-Hydroxyethyl) trimethylammonium chlorideSensitivity: HygroscopicSubstance is listed in Toxic Substance Control Act (TSCA) inventoryAppearance: White crystalline powderDensity : 1.1 g/cm3 at 20 °C (lit.)IUPAC_Name: 2-hydroxy-N,N,N-trimethylethanaminium chloride OR (2-hydroxyethyl)trimethylammonium chlorideMelting Point: 302-305 °C (lit.)(dec.)RTECS Number: KH2975000
Medchemexpress LLC Tetraethylammonium bromide | 71-91-0 | MFCD00011825 | 98.0% | 210.16 g/mol | C8H20BrN | 25 G
Tetraethylammonium bromide is a quaternary ammonium salt (C8H20BrN) supplied as a white to off-white crystalline solid. It is commonly used as a phase-transfer catalyst and reagent in organic synthesis, as an electrolyte for electrochemical studies, and as a source of tetraethylammonium ions in biochemical and pharmacological research. For research use only.
- Quaternary ammonium salt useful as a phase-transfer catalyst.
- Supports organic synthesis and reagent applications.
- Suitable as an electrolyte in electrochemical experiments.
- Provides tetraethylammonium ions for biochemical studies.
- Available in multiple pack sizes, including 25 g.
- Typical purity 98% for research-grade use.
eMolecules (R)-(-)-9-(2-Hydroxypropyl)adenine | 14047-28-0 | MFCD07369451 | 25g
Combi-Blocks | (R)-(-)-9-(2-Hydroxypropyl)adenine | 25g | 267172927 | QB-5949 | 98.000 | 14047-28-0 | MFCD07369451 | 193.210 | C8H11N5O
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Apexbio Technology LLC Choline Fenofibrate 100mg
A3308 is a small molecule designed for biomedical research applications though detailed structural and registry data are currently unavailable Its mechanism of action centers on modulating specific cellular pathways enabling the investigation of signaling events critical to various physiological and pathological processes A3308 s utility is primarily as a research tool to elucidate molecular targets and cellular responses supporting studies in signal transduction pathway characterization and potential therapeutic target identification
![Medchemexpress LLC 2-[2-[[(3R)-1-[8-[(4-tert-butyl-1,3-thiazol-2-yl)carbamoyl]-4-oxo-3-[(E)-2-(2H-tetrazol-5-yl)ethenyl]pyrido... | 957471-96-4 | 99.9% | 693.78 | C31H39N11O6S | 25MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000239474.png-250.jpg)
Medchemexpress LLC 2-[2-[[(3R)-1-[8-[(4-tert-butyl-1,3-thiazol-2-yl)carbamoyl]-4-oxo-3-[(E)-2-(2H-tetrazol-5-yl)ethenyl]pyrido... | 957471-96-4 | 99.9% | 693.78 | C31H39N11O6S | 25MG
D13-9001 is a small-molecule inhibitor of RND-family bacterial efflux pump subunits AcrB (AcrAB-TolC) and MexB (MexAB-OprM). It shows binding affinities (KD ≈ 1.15 μM for AcrB and 3.57 μM for MexB) and is used in microbiology research to study efflux-mediated antibiotic resistance and to potentiate antimicrobial agents in vitro. The compound is supplied as a high-purity solid suitable for biochemical and cellular assays.
- Potent inhibitor of AcrB and MexB efflux pump subunits.
- Measured KD values near 1.15 μM (AcrB) and 3.57 μM (MexB).
- High reported purity suitable for biochemical assays.
- Solid small-molecule formulation amenable to in vitro testing.
- Useful for research on efflux-mediated antibiotic resistance and potentiation assays.
eMolecules Tetraethylammonium chloride monohydrate | 68696-18-4 | MFCD00149992 | 25g
Combi-Blocks | Tetraethylammonium chloride monohydrate | 25g | 342876254 | QF-1522 | 96.000 | 68696-18-4 | MFCD00149992 | 183.720 | C8H22ClNO
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Apexbio Technology LLC Choline Fenofibrate 50mg
A3308 is a small molecule designed for biomedical research applications though detailed structural and registry data are currently unavailable Its mechanism of action centers on modulating specific cellular pathways enabling the investigation of signaling events critical to various physiological and pathological processes A3308 s utility is primarily as a research tool to elucidate molecular targets and cellular responses supporting studies in signal transduction pathway characterization and potential therapeutic target identification