Isotopically Labeled Compounds
Medchemexpress LLC DL-alanine-d3 | 53795-94-1 | MFCD00084106 | 98.0% | 92.11 g/mol | C3H4D3NO2 | 10 MG
DL-Alanine-d3 is a deuterium-labeled form of the amino acid alanine provided as a solid for analytical and tracer applications. It is used as an internal standard and isotopic tracer in mass spectrometry, metabolomics, and method development where precise quantitation and tracking of alanine are required.
- Deuterium-labeled analog for use as an internal standard.
- High chemical and isotopic purity suitable for quantitative analysis.
- Available in small, premeasured amounts for analytical workflows.
- Suitable for mass spectrometry, metabolomics, and tracer studies.
- Stable solid form for straightforward storage and handling.
Medchemexpress LLC (Rac)-Bedaquiline-d6 | 2517573-53-2 | 99.0% | 561.54 | 1 MG
(Rac)-Bedaquiline-d6 is a deuterium-labeled version of Bedaquiline that inhibits *Mycobacterium tuberculosis* F1FO-ATP synthase. It exhibits uncoupler activity and is used for multi-agent resistant tuberculosis. Deuteration can affect pharmacokinetic and metabolic profiles of drugs.
- Used as a tracer
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Medchemexpress LLC Estrone-d4 | 53866-34-5 | 99.5% | 1 MG
Estrone-d4 is the deuterium-labeled version of Estrone (E1), a natural estrogenic hormone. Estrone is a primary endogenous estrogen, produced predominantly by adipose tissue. It is formed through the aromatization of androstenedione in fat cells. Deuterium substitution in drug molecules is used as a tracer for quantitation in drug development and has the potential to influence pharmacokinetic and metabolic profiles of drugs.
- Used as a tracer.
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Deuterium substitution can affect pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC Ketotifen-d3 (fumarate) | 1795138-23-6 | 99.23% | 25 MG
Ketotifen-d3 (fumarate) is the deuterium labeled form of Ketotifen fumarate. This compound acts as a second-generation noncompetitive H1-antihistamine and mast cell stabilizer. It is primarily used to prevent asthma attacks and is intended for research purposes only.
- Deuterium labeled compound
- Functions as a noncompetitive H1-antihistamine
- Acts as a mast cell stabilizer
- Can be used as a tracer
- Suitable as an internal standard for quantitative analysis (e.g., NMR, GC-MS, LC-MS)
Medchemexpress LLC Benzyl benzoate-d5 | 347840-01-1 | 99.8% | 50 MG
Benzyl benzoate-d5 is a deuterium-labeled form of Benzyl benzoate. Benzyl benzoate (benzoic acid benzyl ester) is used as a fragrance ingredient in cosmetic products and in research related to scabies and demodex-associated inflammatory skin conditions. It is for research use only.
- Deuterium-labeled compound
- Can be used as a tracer
- Functions as an internal standard for quantitative analysis
- Suitable for NMR, GC-MS, or LC-MS techniques
- Potential to influence pharmacokinetic and metabolic profiles of drugs
Medchemexpress LLC Imidazole-d4 | 6923-01-9 | 99.9% | 1 G
Imidazole-d4 is a deuterium-labeled imidazole. This compound is commonly used as a tracer and an internal standard for quantitative analysis in various analytical techniques. Deuterium substitution has shown potential to influence the pharmacokinetic and metabolic profiles of drugs, making this compound valuable in drug development processes.
- Deuterium labeled imidazole
- Suitable as a tracer
- Functions as an internal standard for quantitative analysis
- Applicable in NMR, GC-MS, or LC-MS
- Potential to affect pharmacokinetic and metabolic profiles of drugs
Medchemexpress LLC 2-Phenylethanol-d5 | 35845-63-7 | 98.3% | 50 MG
2-Phenylethanol-d5 is a deuterium-labeled version of 2-Phenylethanol. 2-Phenylethanol (Phenethyl alcohol), which is extracted from various organisms such as rose, carnation, hyacinth, Aleppo pine, and orange blossom, is a colorless liquid with a pleasant floral odor. It also acts as an autoantibiotic produced by the fungus *Candida albicans*. This compound is utilized as an additive in cigarettes and as a preservative in soaps due to its stability in basic conditions.
- Can be used as a tracer.
- Suitable as an internal standard for quantitative analysis by techniques like NMR, GC-MS, or LC-MS.
- Incorporation of stable heavy isotopes (like deuterium) into drug molecules is largely for quantitation during the drug development process.
- Deuteration can potentially influence the pharmacokinetic and metabolic profiles of drugs.
Cambridge Isotope Laboratories L-METHIONINE (13C5, 99%; 15N, 99%), 0.1 G, 202468-47-1
L-METHIONINE (13C5, 99%; 15N, 99%), 0.1 G, 202468-47-1
![Revvity Health Sciences Inc Glucose, D-[5-<sup>3</sup>H(N)]-, 1mCi (37MBq)](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502811072.jpg-250.jpg)
Medchemexpress LLC Propan-2-amine-d7 h 25mg
Propan-2-amine-d7 (hydrochloride) is the deuterium labeled Propan-2-amine hydrochloride[1]
Medchemexpress LLC L-(-)-xylose-2-13C | 478506-63-7 | 99.0% | 151.12 | C5H10O5 (13C at 2-position) | 10 MG
L-Xylose-2-13C is the 13C-labeled form of L-xylose used as an isotopically labeled standard or tracer in analytical and synthetic applications. It is suitable for use as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS, and as a raw material for synthesis of bioactive molecules.
- Isotopically labeled at the 2-position for precise tracer studies.
- High purity suitable for analytical applications.
- Available in small pack sizes for method development and standards.
- Solid, white to off-white appearance for easy handling.
Medchemexpress LLC Fumaric acid-13C2 | 96503-56-9 | 99.9% | 118.06 g·mol-1 | C4H4O4 (13C2) | 1 MG
Fumaric acid-13C2 is a stable isotope-labeled form of fumaric acid containing two 13C atoms, provided as a white to off-white solid for use as an analytical standard and tracer in mass-spectrometry and metabolic studies. The material is characterized and documented to support reproducible analytical results.
- Stable isotope labeled with two 13C atoms.
- High purity (99.9%).
- White to off-white solid, easy to handle and weigh.
- Suitable as an internal standard for LC-MS and GC-MS assays.
- Useful for metabolic flux and tracer experiments.
- Available in small milligram pack sizes for analytical use.
- Manufacturer documentation includes SDS and COA for quality assurance.
Medchemexpress LLC Lanosterol-d6 | 28290-39-3 | MFCD22416700 | >99.0% | 432.75 | C30H44D6O | 1 MG
Lanosterol-d6 is a deuterium-labeled analogue of lanosterol provided as a high-purity research reagent for use as an isotopic internal standard and tracer in analytical and biochemical studies. It is optimized for mass spectrometry quantitation, metabolic tracing, and pathway analysis.
- High isotopic enrichment for accurate mass spectrometry quantitation
- High purity (>99%) to minimize interfering signals
- Suitable for use as an internal standard in LC-MS/MS assays
- Useful for metabolic tracing and pathway studies
- Stable solid form for easy storage and handling
- Compatible with common organic solvents for sample preparation
Medchemexpress LLC TCEP-d16 hydrochloride | 1174025-33-2 | 97.0% | 302.75 | 1 MG
TCEP-d16 hydrochloride is a deuterium-labeled version of TCEP hydrochloride, a stable non-thiol reducing agent. It performs faster S-S reductive reactions and selectively reduces protein disulfides without altering protein properties or interacting with thiol-directed agents. It is also commonly used in DNA/AuNP chemistry.
- Deuterium labeled: Used as a tracer in drug development, potentially influencing pharmacokinetic and metabolic profiles.
- Non-thiol reducing agent: Offers greater stability and faster S-S reductive reactions compared to other chemical reductants.
- Selective reduction: Reduces protein disulfides without affecting protein properties or interacting with thiol-directed agents.
- Applications: Can be used as a tracer or internal standard for quantitative analysis by NMR, GC-MS, or LC-MS, and in DNA/AuNP chemistry.
Cambridge Isotope Laboratories ESTRONE (2,3,4-13C3,99%) 100 UG/ML IN METHANOL, 1 ML, 1241684-29-6
ESTRONE (2,3,4-13C3,99%) 100 UG/ML IN METHANOL, 1 ML, 1241684-29-6