Other Solvents
Cambridge Isotope Laboratories Paraquat dichloride (dimethyl-D6 98%) 100 ug/mL in methanol 1 2 mL
Paraquat dichloride (dimethyl-D6 98%) 100 ug/mL in methanol 1 2 mL
Cayman Chemical GlIclazIde-d4 5mg
An internal standard for the quantification of gliclazide by GC- or LC-MS
Medchemexpress LLC Hippuric acid-d2 | 208928-78-3 | MFCD01317354 | 99.8% | 181.18 g·mol⁻1 | C9H7D2NO3 | 10 MG
Hippuric acid-d2 is a deuterium-labeled analogue of hippuric acid used as a stable isotope internal standard for quantitative mass spectrometry and metabolite identification. It provides a predictable mass shift for isotope-dilution assays, supporting accurate quantitation and method development.
- Deuterium-labeled internal standard for LC-MS/MS quantitation.
- Enables isotope-dilution assays with improved accuracy and precision.
- High purity (99.8%) for reliable analytical results.
- Available in small amounts suitable for method development and calibration.
- Solid form, stable under normal laboratory storage conditions.
Medchemexpress LLC L-ornithine-d7 hydrochloride | 2483831-57-6 | 99.9% | 175.67 | C5H6D7ClN2O2 | 5 MG
L-ornithine-d7 hydrochloride is the deuterium-labeled hydrochloride salt of L-ornithine used as an internal standard and reference material for analytical workflows. Supplied as a white to off-white solid, it is intended for quantitative mass spectrometry, metabolomics, and isotope tracing studies where isotopic labeling is required.
- Deuterium-labeled internal standard for quantitative LC-MS/MS.
- High isotopic and chemical purity (reported ≈99.9%) for accurate quantitation.
- Hydrochloride salt form, stable solid suitable for storage and handling.
- Useful in metabolomics, isotope tracing, and method validation workflows.
- Available in small research-scale sizes for trace-level studies.
![Revvity Health Sciences Inc L-[3,4,5-3H(N)]-Leucine, Aqueous Solution, 1 mCi (37 MBq)](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502812203.jpg-250.jpg)
Revvity Health Sciences Inc L-[3,4,5-3H(N)]-Leucine, Aqueous Solution, 1 mCi (37 MBq)
L-[3,4,5-3H(N)]-Leucine, Aqueous Solution, 1 mCi (37 MBq)
Cayman Chemical Dadzen-d4 5mg
An internal standard for the quantification of daidzein by GC- or LC-MS
Medchemexpress LLC Teriflunomide-d4 | 1185240-22-5 | 99.98% | 274.23 | 50 MG
Teriflunomide-d4 is deuterium labeled Teriflunomide. It is intended for research use only and is 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.
- 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.
Medchemexpress LLC Heptadecanoic acid-d33 | 352431-41-5 | 303.65 | 25 MG
Heptadecanoic acid-d33 is the deuterium labeled Heptadecanoic acid. It is an odd chain saturated fatty acid (OCS-FA). Heptadecanoic acid is associated with several diseases, including coronary heart disease, prediabetes, type 2 diabetes, and multiple sclerosis.
- 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 Emtricitabine-15N,d2 | 2714436-53-8 | 97.6% | 250.25 | 1 MG
Emtricitabine-15N,d2 is a 15N-labeled and deuterium labeled Emtricitabine. Emtricitabine is a nucleoside reverse transcriptase inhibitor (NRTI) with an EC50 of 0.01 μM in PBMC cell. It is an antiviral agent for the treatment of HIV infection.
- 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 Clozapine-d8 | 1185053-50-2 | 99.7% | C18H11D8ClN4 | 10MG
Clozapine-d8 is the deuterium-labeled isotopologue of clozapine supplied as an analytical reference standard for pharmaceutical research. It is intended for use as an internal standard in quantitative LC-MS assays, method development, and pharmacokinetic studies where isotopic labeling improves accuracy, precision, and traceability of measurements.
- High isotopic labeling to support accurate internal standardization.
- Intended for LC-MS method development and quantitative assays.
- Useful for pharmacokinetic and ADME studies requiring isotopic tracers.
- Provided in small-mass formats suitable for analytical workflows.
- Typically supplied with analytical documentation such as COA, HNMR, and LCMS.