Quaternary ammonium salts
Medchemexpress LLC Stearoyl-L-carnitine-d3 chloride | 2245711-27-5 | MFCD08705119 | 99.8% | C25H47D3ClNO4 | 10MG
Stearoyl-L-carnitine-d3 chloride is a deuterium-labeled analogue of stearoyl-L-carnitine chloride supplied as an isotope-labeled internal standard for analytical and metabolic research. The product is intended for use in quantitative mass spectrometry and metabolite profiling where a stable isotope reference improves accuracy and reproducibility. It is provided as a high-purity solid with recommended storage conditions to maintain stability.
- Deuterium-labeled internal standard for accurate quantification.
- High purity (99.8%) for reliable analytical performance.
- Chemical formula C25H47D3ClNO4; deuterium (d3) labeled.
- Suitable for LC/MS and GC/MS applications.
- Stable when stored sealed; in solvent: -80°C (6 months), -20°C (1 month).
- Supplied in small research sizes suitable for method development and calibration.
Medchemexpress LLC Choline chloride-13C3 | 67-48-1 | 99.5% | 142.60 | C2(13C)3H14ClNO | 10 MG
Choline chloride-13C3 is a 13C-labeled stable isotope of choline chloride provided as a small-quantity, high-purity standard for tracer studies and mass spectrometry. It is supplied as the chloride salt of choline with three 13C atoms incorporated and is intended for use as an internal standard, tracer, or labeled reagent in biochemical and analytical workflows.
- High isotopic labeling for tracer and mass spectrometry applications.
- High chemical purity suitable for analytical use.
- Supplied in small pack sizes for research and method development.
- Water- and DMSO-soluble for easy preparation of standards and solutions.
- Designed for use as an internal standard and tracer in biochemical assays.
Medchemexpress LLC Decanoyl-L-carnitine-d3 (chloride) | 2483831-87-2 | MFCD08705111 | 99.9% | 354.93 | C17H31D3ClNO4 | 5 MG
Decanoyl-L-carnitine-d3 (chloride) is the deuterium-labeled chloride salt of decanoyl-L-carnitine, supplied as an isotopically labeled reagent for use as an internal standard in quantitative mass spectrometry. It is intended for research use and is characterized by high isotopic enrichment and analytical-grade purity suitable for LC-MS and GC-MS workflows.
- Deuterium-labeled internal standard for accurate quantification by LC-MS and GC-MS.
- High chemical purity (>99.9%) for reliable analytical performance.
- Provided as a stable solid, suitable for long-term storage.
- Chloride salt form compatible with common analytical protocols.
- Three deuterium atoms provide a clear mass shift from the native analyte.
Medchemexpress LLC Choline-13C2 chloride | 202190-49-6 | 98.0% | 141.61 | C5H14ClNO | 10 MG
Choline-13C2 chloride is a stable isotope-labeled form of choline chloride used as an internal standard and tracer for metabolic, biochemical, and pharmacokinetic studies. It is supplied as a small, high-purity material intended for analytical and research applications.
- Stable isotope labeled (two 13C atoms) for mass spectrometry and NMR differentiation.
- Suitable as an internal standard for LC-MS/MS assays.
- High purity: 98.0%.
- Pack size intended for analytical use: 10 MG.
- CAS number 202190-49-6 for unambiguous identification.
Medchemexpress LLC Tetramethylammonium chloride-d12 chloride | 23789-03-9 | 99.9% | 121.67 | 50 MG
Tetramethylammonium-d12 (chloride) is the deuterium labeled Tetramethylammonium chloride. It is for research use only and not sold to patients.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
Medchemexpress LLC Cholic acid-biotin | 95.0% | 809.11 | C42H72N4O9S | 10 MG
Cholic acid-biotin is a biotin-labeled derivative of cholic acid supplied for research use as a solid reagent. It is used in biochemical and binding assays, facilitates fat absorption and cholesterol excretion, and is reported to have oral activity. The compound is provided in small milligram pack sizes for laboratory experiments.
- Biotin-labeled cholic acid suitable for biochemical assays
- Purity 95.0%
- White to off-white solid; DMSO soluble (100 mg/mL)
- Molecular weight 809.11; formula C42H72N4O9S
- Store solid at room temperature protected from light; in solution store at -80°C up to 6 months
Medchemexpress LLC DL-carnitine-d9 chloride | 1219386-75-0 | MFCD03428232 | 98.0% | 206.72 | C7H7D9ClNO3 | 10 MG
(±)-Carnitine-d9 chloride is a deuterium-labeled racemic (DL) form of carnitine chloride used as an internal standard and tracer in quantitative analytical methods including LC-MS, GC-MS, and NMR. It is provided as a white to off-white solid with high assay and isotopic purity and is intended for research applications in fatty acid metabolism and pharmacokinetic studies.
- Deuterium-labeled tracer for quantitative analysis.
- Compatible with LC-MS, GC-MS, and NMR methods.
- Racemic DL form suitable for general analytical use.
- High assay and isotopic purity for reproducible results.
- Supplied as a stable solid with defined cold storage recommendations.
Medchemexpress LLC Choline Chloride-13C3 | 67-48-1 | 99.7% | 1 MG
Choline Chloride-13C3 is the 13C-labeled Choline (chloride). Choline chloride is an organic compound and a quaternary ammonium salt, an acyl group acceptor and choline acetyltransferase substrate. It is also an important additive in feed, especially for chickens, where it accelerates growth.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
Medchemexpress LLC Ethanaminium, 2-hydroxy-N,N,N-trimethyl-, chloride (1:1)-13C3 | 67-48-1 | 99.7% | 5 MG
Choline Chloride-13C3 is the 13C-labeled Choline (chloride). It is an organic compound and a quaternary ammonium salt, an acyl group acceptor and choline acetyltransferase substrate. It is also an important additive in feed, especially for chickens, where it accelerates growth. For research use only.
- Used as a tracer
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Medchemexpress LLC Valeryl-L-carnitine-d3 chloride | 162040-64-4 | 99.9% | 284.79 | 500 UG
Valeryl-L-carnitine-d3 (chloride) is the deuterium labeled Valeryl-L-carnitine chloride. It is for research use only and can be used as a tracer or an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS. Deuteration may affect the pharmacokinetic and metabolic profiles of drugs.
- Can be used as a tracer
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Medchemexpress LLC Tetramethylammonium-d12 (chloride) | 23789-03-9 | 99.9% | 121.67 | 100 MG
Tetramethylammonium-d12 (chloride) is the deuterium labeled Tetramethylammonium chloride. It is intended for research use only. This compound can be utilized as a tracer and as an internal standard for quantitative analysis through techniques such as NMR, GC-MS, or LC-MS. Deuteration is notable for its potential impact on the pharmacokinetic and metabolic profiles of drugs.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
Medchemexpress LLC Methan-d3-aminium, N,N,N-tri(methyl-d3)-, chloride | 23789-03-9 | 99.9% | 121.67 | 25 MG
TMA chloride-d12 chloride is the deuterium labeled Tetramethylammonium chloride. It consists of stable heavy isotopes of hydrogen, carbon, and other elements incorporated into drug molecules, largely as tracers for quantitation during the drug development process. Deuteration has gained attention because of its potential to affect the pharmacokinetic and metabolic profiles of drugs.
- Stable heavy isotopes for drug development
- Potential to affect pharmacokinetic and metabolic profiles
- Used as tracers for quantitation
Medchemexpress LLC Choline-13C2 chloride | 202190-49-6 | 98.0% | 5 MG
Choline-13C2 chloride is a 13C labeled Choline chloride, an essential nutrient known for activating alpha7 nicotinic receptors and demonstrating analgesic and anti-inflammatory activity. This compound is valuable as a tracer and an internal standard for quantitative analysis in various analytical techniques.
- Used as a tracer
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Stable heavy isotopes incorporated into drug molecules for quantitation during drug development
- Potential to affect the pharmacokinetic and metabolic profiles of drugs
Medchemexpress LLC (±)-Carnitine-d9 chloride | 1219386-75-0 | 99.7% | 5 MG
The product is (±)-Carnitine-d9 chloride, a deuterium-labeled form of (±)-Carnitine chloride. This compound exists in both D and L isomers, with L-carnitine known for its vital role in fatty acid β-oxidation, as well as its antioxidant and anti-inflammatory properties. This deuterated version is particularly useful as a tracer and internal standard in various analytical techniques.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Deuteration has gained attention due to its potential to affect the pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC Valeryl-L-carnitine-d3 chloride | 162040-64-4 | >99.9% | 284.79 | 1 MG
Valeryl-L-carnitine-d3 (chloride) is a deuterium labeled version of Valeryl-L-carnitine chloride. It serves as a tracer and internal standard for quantitative analysis using techniques like NMR, GC-MS, or LC-MS. Stable heavy isotopes of elements such as hydrogen and carbon are incorporated into drug molecules primarily for quantitation during drug development, and deuteration can influence the pharmacokinetic and metabolic profiles of drugs.
- Used as a tracer and internal standard
- Applicable for quantitative analysis by NMR, GC-MS, or LC-MS
- Incorporates stable heavy isotopes for drug development
- Deuteration can affect pharmacokinetic and metabolic profiles
- 1
- 2