Isotopically Labeled Compounds
Sigma Aldrich Fine Chemicals Biosciences Chloroacetc acd 2 13C 99250MG
Chloroacetc acd 2 13C 99250MG
Cambridge Isotope Laboratories DL-LYSINE:2HCL (2-13C, 99%; EPSILON-15N, 99%), 0.1 G
DL-LYSINE:2HCL (2-13C, 99%; EPSILON-15N, 99%), 0.1 G
Cambridge Isotope Laboratories ANILINE (13C6, 99%), 0.1 G, 100849-37-4
ANILINE (13C6, 99%), 0.1 G, 100849-37-4
Revvity Health Sciences Inc Iodine-125 Radionuclide, 5mCi, Specific Activity: ~17Ci/mg, 0.1M NaOH (pH 12-14)
Iodine-125 Radionuclide, 5mCi, Specific Activity: ~17Ci/mg, 0.1M NaOH (pH 12-14)
Cambridge Isotope Laboratories PALMITIC ACID (METHYL-D3, 98%), 0.5 G
PALMITIC ACID (METHYL-D3, 98%), 0.5 G
Cambridge Isotope Laboratories DL-SERINE (2,3,3-D3, 98%), 1 G, 70094-78-9
DL-SERINE (2,3,3-D3, 98%), 1 G, 70094-78-9
Medchemexpress LLC N,N-dimethyl-4-(phenyldiazenyl)aniline-d5 | 1398109-08-4 | MFCD22565739 | 99.0% | 230.32 g/mol | C14H10D5N3 | 25 MG
Methyl yellow-d5 (N,N-dimethyl-4-(phenyldiazenyl)aniline-d5) is the deuterium-labeled isotopologue of methyl yellow supplied as a high-purity analytical reference standard. It is intended for use as a tracer or internal standard in mass spectrometry and other analytical workflows, and is provided with high isotopic enrichment and defined storage recommendations.
Medchemexpress LLC (±)12(13)Epoxy-9Z-octadecenoic-9,10,12,13-d4 acid | 17966-13-1 | 99.0% | 300.47 | 25 UG
(±)12(13)-EpOME-d4 is a deuterium labeled compound designed for research use. It can serve as a tracer and an internal standard in quantitative analysis methods such as NMR, GC-MS, or LC-MS. Deuteration may influence the pharmacokinetic and metabolic profiles of drugs.
- Used as a tracer
- Functions as an internal standard for quantitative analysis
- Applicable in NMR, GC-MS, or LC-MS
- Deuterium labeled compound
Medchemexpress LLC Hexadecanamide-13,13,14,14,15,15,16,16,16-d9 | 2260669-51-8 | ≥99.0% | 546.96 g/mol | C34H58D9NO3 | 1 MG
Deuterium-labeled C16-ceramide (d9) intended as an internal standard and tracer for quantitative analyses by NMR, GC-MS, and LC-MS. The d9 isotopic label enables reliable quantitation of C16-ceramide species in biological samples and analytical workflows. Supplied as a high-purity research chemical in a small, convenient quantity for analytical use.
- Deuterium-labeled for use as an internal standard.
- Suitable for NMR, GC-MS, and LC-MS quantitation.
- High reported purity (≥99%).
- Appropriate for tracer studies and quantitative assays.
- Provided in a small analytical quantity for method development.
Medchemexpress LLC Tiaprofenic acid-d3 | 2740831-64-3 | 96.3% | 263.33 g/mol | C14H9D3O3S | 5 MG
Tiaprofenic acid-d3 is a deuterium-labeled analogue of tiaprofenic acid provided as a research-grade chemical standard. It is intended for use as an internal standard or tracer in analytical, pharmacokinetic, and mass spectrometry studies of the nonsteroidal anti-inflammatory compound, and is supplied in small, accurately weighed quantities for laboratory applications.
- Deuterium-labeled analog for use as an internal standard.
- Purity 96.3%.
- Molecular formula C14H9D3O3S.
- Molecular weight 263.33 g/mol.
- Available in small pack sizes such as 5 mg.
- Supplied as a solid for analytical and tracer applications.
- For research use only, not for human or clinical use.
![Revvity Health Sciences Inc Thyroxine, ([<sup>125</sup>I]-T4), L-[<sup>125</sup>I]-, 500µCi (18.5MBq), Specific Activity: 5700µCi (210MBq)/µg](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502812325.jpg-250.jpg)
Revvity Health Sciences Inc Thyroxine, ([125I]-T4), L-[125I]-, 500µCi (18.5MBq), Specific Activity: 5700µCi (210MBq)/µg
Thyroxine, ([125I]-T4), L-[125I]-, 500µCi (18.5MBq), Specific Activity: 5700µCi (210MBq)/µg
Medchemexpress LLC Uridine-13C,15N2 | 369656-75-7 | 1 MG
Uridine-13C,15N2 is a 13C- and 15N-labeled Uridine. It is intended for research use only. This compound can be used as a tracer and as an internal standard for quantitative analysis. Stable heavy isotopes of hydrogen, carbon, and other elements are incorporated into drug molecules as tracers for quantitation during drug development. Deuteration has gained attention due to its potential to affect pharmacokinetic and metabolic profiles of drugs.
- Can be utilized as a tracer.
- Serves as an internal standard for quantitative analysis using techniques such as NMR, GC-MS, or LC-MS.
Medchemexpress LLC Digitoxin-d3 | 26970-68-3 | 767.96 | C41H61D3O13 | 1mg
Digitoxin-d3 is the deuterium labeled Digitoxin-d3 (HY-W747795)[1]
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 Triclocarban-d4 | 1219799-29-7 | 98.0% | 319.61 | C13H5D4Cl3N2O | 10 MG
Triclocarban-d4 is the deuterium-labeled analogue of triclocarban used as an analytical standard and internal tracer for quantitative LC-MS, GC-MS, and NMR analyses. It is supplied as a white to off-white solid intended for method development, quantitation, and metabolic or environmental studies.
- Deuterium-labeled internal standard for quantitative LC-MS and GC-MS.
- High purity (98.0%) suitable for analytical applications.
- Supplied as a 10 mg solid for analytical preparation.
- Stable isotope label enables accurate quantitation and tracer studies.
- Recommended storage: powder -20°C (3 years) or 4°C (2 years).