Quaternary ammonium salts
Medchemexpress LLC Choline (bitartrate) | 87-67-2 | MFCD31726185 | 98.4% | 253.25 g/mol | C9H19NO7 | 10 MG
Choline (bitartrate) is an analytical reference standard of choline supplied as a white to off-white solid and intended for research and analytical applications such as calibration, method development, and quality control. It has a molecular weight of 253.25 g/mol and is provided with supporting documentation for safe and consistent use.
- High purity suitable for analytical use.
- White to off-white solid physical form.
- Available in small quantities for trace-level calibration.
- Includes certificate of analysis and safety data sheet.
- Suitable for method development and quality control.
Medchemexpress LLC Cholic acid | 81-25-4 | MFCD00003672 | 99.6% | 408.57 g/mol | C24H40O5 | 10 MG
Cholic acid is an analytical reference standard of the primary bile acid cholic acid, supplied as a small-quantity solid for laboratory research, analytical method development, and chromatography calibration. Supplied as a 10 mg standard, the material is intended for research use only; verify the certificate of analysis for lot-specific purity and storage instructions.
- Analytical reference standard for cholic acid.
- CAS number 81-25-4.
- Typical purity approximately 99.6% (verify COA).
- Solid powder supplied in a small vial appropriate for analytical use.
- Intended for research and analytical applications; not for therapeutic use.
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.
eMolecules 2-(2-Bromo-1,1,2,2-tetrafluoroethoxy)anisole | 220004-17-1 | MFCD28040491 | 5g
Apollo Scientific | 2-(2-Bromo-1,1,2,2-tetrafluoroethoxy)anisole | 5g | 562433925 | PC32761 | 98.000 | 220004-17-1 | MFCD28040491 | 303.051 | C9H7BrF4O2
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Medchemexpress LLC Tetrabutylammonium hydrogen sulfate | 32503-27-8 | MFCD00011637 | 99.7% | 339.53 g·mol⁻¹ | C16H37NO4S | 25g
Tetrabutylammonium hydrosulfate is a quaternary ammonium salt that is commonly used as a phase transfer catalyst acid catalyst and reagent in various chemical reactions especially in organic synthesis Tetrabutylammonium hydrosulfate has unique chemical properties that allow it to facilitate the transfer of ions or molecules from one phase to another making it an important ingredient in a variety of industrial processes
eMolecules Combi-Blocks Tetraethylammonium chloride 1kg 335344684 QB-0002 96 000 56-34-8 MFCD00011828 165 710 C8H20ClN
Combi-Blocks Tetraethylammonium chloride 1kg 335344684 QB-0002 96 000 56-34-8 MFCD00011828 165 710 C8H20ClN
Selleck Chemical LLC Choline Glycerophosphate S4972-1g
Choline Glycerophosphate (Glycerophosphorylcholine) is a choline derivative and one of the two major forms of choline storage (along with phosphocholine) in the cytosol