Isotopically Labeled Compounds

Chemicals to which isotopes have been attached in order to label specific atoms. Isotopically labeled compounds are commonly used in synthetic chemistry, characterization techniques such as NMR, and biology.

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4,516

Medchemexpress LLC Glycerol-d8 (1,2,3-propanetriol-d8) | 7325-17-9 | MFCD00084149 | 98.3% | 100.14 | C3D8O3 | 50 MG

Glycerol-d8 (1,2,3-Propanetriol-d8) is the deuterium-labeled analogue of glycerol used as a stable isotope tracer and internal standard in analytical and research workflows. It is supplied at high chemical and isotopic purity for use in NMR spectroscopy, mass spectrometry, and metabolic tracing. This product is intended for research use only.

High isotopic labeling for clear mass shifts and NMR signals.
High chemical purity to minimize background interference.
Compatible with NMR and mass spectrometry analytical workflows.
Useful as an internal standard for accurate quantitation.
Stable liquid form for easy sample preparation and handling.

Pricing & Availability

4,517

Medchemexpress LLC Xanthine-15N2 | 161770-53-2 | 99.4% | 154.1 g/mol | C5H4(15N)2O2 | 1 MG

Xanthine-15N2 is a 15N2 isotopically labeled xanthine provided as a 1 mg powder for research use. It is designed as an internal standard or tracer for mass spectrometry and biochemical assays, offering consistent isotopic labeling and analytical performance.

Stable isotope-labeled compound for analytical and tracer studies.
High chemical purity (99.4%) suitable for sensitive assays.
Small 1 mg powder format for standards and method development.
Soluble at 10 mM in DMSO, compatible with common solvents.
Long-term storage stability at -20°C (3 years) and 4°C (2 years).
For research use only; not for human or clinical use.

Pricing & Availability

4,518

Medchemexpress LLC L-asparagine-13C4,15N2 monohydrate | 202406-87-9 | MFCD01073445 | 98.0% | 153.07 | 13C4H7 15N2O4 | 5 MG

L-asparagine-13C4,15N2 monohydrate is an isotopically labeled amino acid provided as a monohydrate for use as a stable-isotope internal standard and tracer in mass spectrometry, metabolite tracing, and isotope labeling studies. It contains four 13C labels and two 15N labels and is manufactured to analytical-grade purity for reliable quantitative work.