Isotopically Labeled Compounds
Medchemexpress LLC MPP+-d3 (iodide) | 207556-07-8 | 99.2% | 300.15 | 5 MG
MPP+-d3 (iodide) is deuterium labeled MPP+ (iodide). MPP+ iodide is a toxic metabolite of the neurotoxin MPTP, which causes Parkinson's disease symptoms in animal models by selectively destroying dopaminergic neurons in the substantia nigra. It is taken up by the dopamine transporter into dopaminergic neurons, where it exerts its neurotoxic action on mitochondria by affecting complex I of the respiratory chain. MPP+ iodide is also a high-affinity substrate for the serotonin transporter (SERT). This compound can be used as a tracer and as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Deuterium labeled compound.
- Stable heavy isotopes of hydrogen, carbon, and other elements have been incorporated for use as tracers in drug development.
- Has potential to affect pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC D-Fructose-13C2 | 2483736-14-5 | 1 MG
D-Fructose-13C2 is a 13C labeled D-Fructose, which is a naturally occurring monosaccharide found in many plants. This compound is intended for research use only, serving as a tracer and an internal standard for quantitative analysis in various analytical methods.
- Used as a tracer in research applications
- Functions as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Incorporates stable heavy isotopes for quantitation during drug development processes
Medchemexpress LLC L-Glucose-13C | 478519-02-7 | 98.0% | 181.15 | 10 MG
L-Glucose-13C is the ⁴³C labeled L-Glucose, which is an enantiomer of D-glucose and can promote food intake. This compound is intended for research use only and not for patient consumption. It can be utilized as a tracer and an internal standard in quantitative analysis.
- Can be used as a tracer and internal standard
- Suitable for quantitative analysis by NMR, GC-MS, or LC-MS
- ⁴³C labeled L-Glucose
- Enantiomer of D-glucose
- Promotes food intake
Medchemexpress LLC DL-Homocysteine-d4 | 416845-90-4 | 98.4% | 139.21 | 10 MG
DL-Homocysteine-d4 is the deuterium labeled DL-Homocysteine. DL-Homocysteine is a weak neurotoxin that can affect the production of kynurenic acid in the brain.
- This compound can be used as a tracer.
- This compound can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
Medchemexpress LLC Nonanoic acid-d17 | 130348-94-6 | 25 MG
Nonanoic acid-d17 is the deuterium labeled Nonanoic acid. Nonanoic acid is a naturally-occurring saturated fatty acid with nine carbon atoms. It significantly reduces bacterial translocation, enhances antibacterial activity, and remarkably increases the secretion of porcine β-defensins 1 (pBD-1) and pBD-2.
- 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 Ethyl palmitate-d31 | 1215721-57-5 | 100 MG
Ethyl palmitate-d31 is the deuterium labeled Ethyl palmitate. Ethyl palmitate, a fatty acid ethyl ester (FAEE), shows a marked preference for the synthesis of ethyl palmitate and ethyl oleate over other FAEEs in human subjects after ethanol consumption. Ethyl palmitate is used as a hair- and skin-conditioning agent.
- 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 Fluorene-d8 | 35782-21-9 | 174.27 g/mol | C13H2D8 | 5 G
Fluorene-d8 is the deuterium-labeled isotopologue of fluorene provided as an analytical reference standard for research use. It is intended for analytical applications, isotopic tracing, and method development in laboratory workflows; lot-specific certificates of analysis are available on request.
- Deuterium-labeled compound suitable for isotopic tracing and internal standards.
- Supplied as a research-grade analytical standard for laboratory use.
- Available in multiple pack sizes to fit experimental needs.
- Compatible with mass spectrometry and quantitative analysis methods.
- Certificate of analysis available for lot-specific purity and identity data.
Medchemexpress LLC Eravacycline-d4 dihydrochloride | 99.98% | 635.50 | 5 MG
Eravacycline-d4 (TP-434-d4) dihydrochloride is deuterium labeled Eravacycline. Eravacycline is a potent and broad-spectrum antibacterial agent. It is for research use only.
- This compound can be used as a tracer.
- This compound can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Stable heavy isotopes of hydrogen, carbon, and other elements have been 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.
![Revvity Health Sciences Inc Thymidine, [Methyl-<sup>3</sup>H]-, Specific Activity: 2 Ci/mmol, 5 mCi](https://assets.fishersci.com/TFS-Assets/CCG/product-images/509051259.jpg-250.jpg)
Revvity Health Sciences Inc Thymidine, [Methyl-3H]-, Specific Activity: 2 Ci/mmol, 5 mCi
Thymidine, [Methyl-3H]-, Specific Activity: 2 Ci/mmol, 5 mCi
Medchemexpress LLC Xanthine | 161770-53-2 | 99.4% | 154.10 g/mol | C5H4N2(15N)2O2 | 5 MG
Xanthine-15N2 is a stable isotope-labeled xanthine supplied as a high-purity analytical standard for mass spectrometry, tracer studies, and metabolic pathway research. The 15N2 labeling provides mass separation from endogenous xanthine, enabling accurate quantitation and recovery correction in LC-MS workflows. Recommended storage and handling preserve isotopic integrity for analytical use.
- High isotopic enrichment (15N) for accurate mass spectrometry quantification.
- High purity suitable for analytical and research applications.
- Molecular weight 154.10 g/mol and formula C5H4N2(15N)2O2 for exact mass calculations.
- Available in small, pre-weighed packs appropriate for trace-level assays.
- Stable when stored under recommended conditions to maintain integrity.
Cambridge Isotope Laboratories Formic acid (formyl-D 98%) ( 5% H2O) 5 g
Formic acid (formyl-D 98%) ( 5% H2O) 5 g
Sigma Aldrich Fine Chemicals Biosciences D-Glucose-13C6 >=99 atom % 13C, >=99% (CP) | 110187-42-3 | MFCD00037544 | 3G
D-Glucose-13C6 >=99 atom % 13C, >=99% (CP) | Purity: >=99% (CP) | Mol Wt: 186.11 | 110187-42-3 | MFCD00037544 | 3G
Sigma Aldrich Fine Chemicals Biosciences D-Glucose-2-13C 99 atom % 13C | 105931-74-6 | MFCD00037546 | 1G
D-Glucose-2-13C 99 atom % 13C | Purity: 99% (CP) | Mol Wt: 181.15 | 105931-74-6 | MFCD00037546 | 1G
Cambridge Isotope Laboratories 2-AMINOPYRIDINE (D6, 98%), 1 G, 203784-57-0
2-AMINOPYRIDINE (D6, 98%), 1 G, 203784-57-0