Isotopically Labeled Compounds
Medchemexpress LLC (S)-viloxazine-d5 (hydrochloride) | 1246816-39-6 | 98.2% | 278.79 g·mol⁻1 | C13H15D5ClNO3 | 10MG
(S)-Viloxazine-d5 (hydrochloride) is the deuterium-labeled form of (S)-viloxazine hydrochloride supplied as the hydrochloride salt for use as a stable-isotope internal standard and research reagent. It is provided in small research quantities for analytical and assay applications.
- Deuterium-labeled internal standard (d5) for analytical assays.
- Hydrochloride salt form for improved handling.
- High reported purity (98.19%).
- Molecular weight approximately 278.79 g·mol⁻1.
- Chemical formula includes five deuterium atoms (C13H15D5ClNO3).
Medchemexpress LLC Treprostinil-d9 | 2747918-14-3 | MFCD23144256 | 99.8% | 399.57 g/mol | C23H25D9O5 | 5 MG
Treprostinil-d9 is a deuterium-labeled analogue of treprostinil used as a stable-isotope internal standard for analytical and pharmacokinetic studies. It is intended for use in mass spectrometry, method development, and quantitative bioanalysis where accurate normalization and peak identification are required.
- Deuterium-labeled internal standard for accurate quantitation in MS assays.
- High purity (99.79%) for reliable analytical performance.
- Molecular weight approximately 399.57 g/mol for precise mass calibration.
- Available in small, research-friendly pack sizes (mg scale).
- Suitable for pharmacokinetic and bioanalytical method development.
Medchemexpress LLC Methanol-d1 | 1455-13-6 | MFCD00044213 | >99.0% | 33.048 g/mol | CH3OD | 25 G
Methanol-d1 (CH3OD) is a deuterium-labeled methanol used as a deuterated solvent, tracer, and internal standard in analytical chemistry and spectroscopic applications. It offers high isotopic purity for NMR, mass spectrometry, and tracer studies, and is supplied with safety documentation for handling and storage.
- Deuterium-labeled methanol (CH3OD).
- CAS number 1455-13-6.
- High isotopic purity (≥99.0%).
- Suitable as an NMR solvent and internal standard.
- Useful as a tracer in isotopic labeling and analytical workflows.
- Provided with an SDS for safe handling and transport.
Medchemexpress LLC 1-bromoheptane-d15 | 98195-42-7 | MFCD01073970 | >98.0% | 194.19 | C7D15Br | 10 MG
1-Bromoheptane-d15 is the deuterium-labeled analogue of 1-bromoheptane used as an isotopic tracer and internal standard in analytical and synthetic workflows. It is supplied in small, pre-weighed quantities for laboratory use, has a molecular weight of 194.19, and appears as a colorless to light yellow liquid. This product supports mass spectrometry, tracer studies, and method development.
Medchemexpress LLC Decanoic acid-d5 | 1219803-00-5 | 98.3% | 177.30 | C10H15D5O2 | 25 MG
Decanoic acid-d5 is the deuterium-labeled analogue of decanoic (capric) acid provided for research use. It is used as an isotopically labeled standard or tracer in analytical workflows, particularly mass spectrometry and metabolic studies, and is supplied with confirmed chemical and isotopic purity.
- Isotopically labeled (d5) decanoic acid for analytical standards.
- High chemical and isotopic purity for accurate quantitation.
- Available in multiple pre-weighed sizes to suit experimental needs.
- Suitable as an internal standard or tracer in mass spectrometry.
- Provided for research use only; not for human or diagnostic applications.
![Revvity Health Sciences Inc Hypoxanthine Monohydrochloride, [<sup>3</sup>H(G)]-,>97%, 1mCi (37MBq)](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502810988.jpg-250.jpg)
Revvity Health Sciences Inc Hypoxanthine Monohydrochloride, [3H(G)]-,>97%, 1mCi (37MBq)
Hypoxanthine Monohydrochloride, [3H(G)]-,>97%, 1mCi (37MBq)
Medchemexpress LLC Adipic acid-d8 | 52089-65-3 | 99.7% | 154.19 g/mol | C6H2D8O4 | 25 MG
Adipic acid-d8 (hexanedioic acid-d8) is a deuterium-labeled adipic acid used as a stable isotope standard and tracer in analytical chemistry. Supplied as a high-purity solid, it supports accurate quantitation and method development in mass spectrometry and related analytical workflows.
- High isotopic enrichment and chemical purity for accurate mass spectrometry.
- Solid form simplifies storage and handling.
- Available in small milligram pack sizes for analytical workflows.
- Molecular formula C6H2D8O4; molecular weight 154.19 g/mol.
- Commonly used as an internal standard, tracer, and analytical reference.
Cayman Chemical FenretInIde-d4 1mg
An internal standard for the quantification of fenretinide by GC- or LC-MS
Cayman Chemical RIvaroxabn-d4 1mg
An internal standard for the quantification of rivaroxaban by GC- or LC-MS
Medchemexpress LLC Xanthurenic acid-d4 | 1329611-28-0 | MFCD27967185 | 99.1% | 209.19 | C10H3D4NO4 | 2.5 MG
Xanthurenic acid-d4 is the deuterium-labeled analogue of xanthurenic acid supplied as a solid for research use. It is formulated for use as an internal standard in analytical workflows, providing consistent isotopic shifts for accurate quantitation in mass spectrometry and chromatographic assays.
- Deuterium-labeled for isotope-dilution and mass spectrometry quantitation.
- High chemical purity suitable for analytical standards.
- Molecular weight 209.19 g/mol and formula C10H3D4NO4 provide exact mass reference.
- Compatible with LC-MS/MS and GC-MS workflows.
- Available in small, accurately weighed quantities for calibration and method validation.
- Supplied as a light yellow to yellow solid; intended for research use only.
Medchemexpress LLC Robenacoxib-d5 | 2012598-81-9 | 99.6% | 332.30 | C16H8D5F4NO2 | 1 MG
Robenacoxib-d5 is a deuterium-labeled form of the COX inhibitor robenacoxib supplied for research use. It is intended as a tracer or internal standard in analytical and pharmacokinetic studies, and is provided with characterized molecular data and high chemical purity for reliable quantitation.
- Deuterium-labeled tracer for quantitative analysis and pharmacokinetic studies.
- High purity suitable for use as an internal standard.
- Characterized molecular data: CAS 2012598-81-9, formula C16H8D5F4NO2, molecular weight 332.30.
- Available in small, precisely measured quantities for analytical workflows.
Medchemexpress LLC Colchicine-d6 | 1217651-73-4 | 99.4% | 405.47 | 1 MG
Colchicine-d6 is a deuterium-labeled version of Colchicine. Colchicine acts as a tubulin inhibitor and a microtubule disrupting agent, inhibiting microtubule polymerization with an IC50 of 3 nM. It also functions as a competitive antagonist of the α3 glycine receptors (GlyRs).
- Used as a tracer
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
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.