Isotopically Labeled Compounds
Cambridge Isotope Laboratories CYCLOLEUCINE (CARBOXYL-13C, 99%; 2,2,5,5-D4, 96%+), 0.25 G, 201417-02-9
CYCLOLEUCINE (CARBOXYL-13C, 99%; 2,2,5,5-D4, 96%+), 0.25 G, 201417-02-9
Cambridge Isotope Laboratories L-GLUTAMINE (13C5, 97-99%; D5, 97-99%; 15N2, 97-99%), 0.25 G
L-GLUTAMINE (13C5, 97-99%; D5, 97-99%; 15N2, 97-99%), 0.25 G
Medchemexpress LLC 9-Octadecenoic acid (Z)-, 1,2,3-propanetriyl-1,1,2,3,3-d5 ester | 60892-83-3 | MFCD18782961 | 97.0% | 890.46 | C57H99D5O6 | 10 MG
Triolein-d5 is the deuterium-labeled form of triolein, provided as a high-purity stable isotope standard for research and analytical applications such as LC-MS and GC-MS quantification. It is a symmetrical triacylglycerol reported to reduce MMP-1 upregulation and to possess antioxidant and anti-inflammatory activity.
- Deuterium-labeled stable isotope standard for analytical use
- Chemical formula C57H99D5O6 and molecular weight 890.46
- Purity 97.0%
- Supplied as a 10 mg vial
- Soluble in DMSO (100 mg/mL); sonication recommended
- Store pure material at -20°C (3 years) or 4°C (2 years); in solvent store at -80°C (6 months) or -20°C (1 month)
Medchemexpress LLC Darolutamide-d4 | 2484757-20-0 | 98.6% | 402.87 g/mol | C19H15D4ClN6O2 | 10 MG
Darolutamide-d4 is a deuterium-labeled analogue of the androgen receptor antagonist darolutamide supplied as a solid for research use. It is used as a tracer or internal standard in quantitative analytical methods such as NMR, GC-MS, and LC-MS and reflects the parent compound's AR antagonist profile.
- Deuterium-labeled internal standard for analytical assays.
- Intended for research use only; not for human or clinical use.
- High purity (≈98.6%).
- Soluble in DMSO at 100 mg/mL; sonication recommended.
- Powder storage: -20°C (multi-year stability); in solution: -80°C for long-term storage.
- White to off-white solid; molecular weight ~402.87 g/mol.
Medchemexpress LLC Olmesartan-d4 (RNH-6270-d4) | 1420880-41-6 | MFCD10567132 | 98.8% | 450.53 | C24H22D4N6O3 | 10 MG
Olmesartan-d4 is a deuterium-labeled analogue of olmesartan supplied as a 10 mg research-grade standard for laboratory analytical use. It is intended as a tracer or internal standard for quantitative methods and is not for human or veterinary use.
- Deuterium-labeled internal standard for quantitative analysis.
- High purity: 98.83% suitable for analytical assays.
- Molecular weight 450.53; formula C24H22D4N6O3.
- Soluble in DMSO (20.83 mg/mL); may require ultrasonic treatment.
- Recommended storage: powder -20 °C; in solvent -80 °C (6 months) or -20 °C (1 month).
- Supplied as a 10 mg quantity for analytical workflows.
Medchemexpress LLC 1,2-dibromoethane-d4 | 22581-63-1 | MFCD00037499 | >98.0% | 191.89 g·mol⁻¹ | C2Br2D4 | 100 MG
1,2-dibromoethane-d4 is the deuterium-labeled analogue of ethylene dibromide supplied as a neat liquid for use as an isotopic reagent, internal standard, or NMR solvent in research and synthetic applications. The product has formula C2Br2D4, CAS 22581-63-1, and a molecular weight of approximately 191.89 g·mol⁻¹. It is provided with high isotopic enrichment and chemical purity for analytical reliability. For research use only, not for human consumption.
- Deuterium-labeled (d4) for isotopic tracing and NMR applications.
- High isotopic enrichment suitable for quantitative analysis.
- Chemical purity typically >98.0% to ensure analytical reliability.
- Useful as an internal standard and reagent in synthesis and spectroscopy.
- Liquid form with formula C2Br2D4 and molecular weight 191.89 g·mol⁻¹.
- Store cold (refrigerated or -20°C recommended) to preserve stability.
Medchemexpress LLC 1,2-dibromoethane-d4 | 22581-63-1 | MFCD00037499 | 99.0% | 191.89 g/mol | C2D4Br2 | 10 G
1,2-Dibromoethane-d4 is a deuterium-labeled analog of 1,2-dibromoethane used as an isotopically enriched reagent and reference standard in analytical and synthetic chemistry. It is commonly used in NMR studies and isotopic tracing applications and is provided for research use only.
- Deuterium labeled (d4) for isotopic tracing and NMR studies.
- High isotopic enrichment: 99.0% D.
- Suitable as an NMR solvent or reference standard.
- Useful as an isotopically labeled reagent in synthesis.
- Molecular formula C2D4Br2; molecular weight 191.89 g/mol.
- Supplied as 10 G quantity for laboratory use.
Medchemexpress LLC Leucovorin-d4 (calcium hydrate) | >90.0% | 533.54 | C20H19D4CaN7O8 | 250 UG
Leucovorin-d4 (calcium hydrate) is a deuterium-labeled folinic acid supplied as the calcium hydrate salt for research and analytical applications. It is provided as a small research-grade standard (250 μg) with a listed purity of >90% and is not intended for human use.
- Deuterium-labeled folinic acid for use as an isotope standard.
- Calcium hydrate form suitable for analytical workflows.
- Purity >90.0% as specified by the supplier.
- Molecular formula C20H19D4CaN7O8 and molecular weight 533.54.
- Supplied in a 250 μg research pack for analytical or mass spectrometry applications.
- Not intended for human or clinical use; for research use only.
Medchemexpress LLC 4-(N-Nitrosomethylamino)-1-(3-pyridyl)-1-butanone-d4 | 764661-24-7 | 99.7% | 1 MG
NNK-d4 is the deuterium labeled NNK. This compound can be used as a tracer or as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS. Deuteration has gained attention because of its potential to affect the pharmacokinetic and metabolic profiles of drugs.
- 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 n-octacosane-d58 | 16416-33-4 | MFCD00190493 | 99.1% | 453.12 g/mol | C28D58 | 50 MG
Deuterium-labeled octacosane (n-octacosane-d58) is an isotope-labeled straight-chain hydrocarbon supplied as a white to off-white solid. It serves as an internal standard, tracer, or reference material for gas chromatography-mass spectrometry and other analytical or metabolic studies requiring a heavy-isotope analogue. The material offers high isotopic and chemical purity and specific storage recommendations for long-term stability.
- Isotope-labeled internal standard for GC/MS and LC/MS applications.
- Molecular formula C28D58 and molecular weight 453.12 g/mol.
- Purity 99.1% for reliable quantitation.
- Solid, white to off-white form for easy handling.
- Recommended storage: powder at -20°C for long term, 4°C for shorter term.
Medchemexpress LLC N-hexacosane-d54 | 1219803-91-4 | 99.5% | 421.04 g/mol | C26D54 | 25 MG
N-Hexacosane-d54 is a deuterium-labeled analogue of n-hexacosane used as an isotopic tracer and internal standard for analytical and research applications. It provides a defined mass shift for reliable quantitation in mass spectrometry and gas chromatography and is supplied for laboratory research use only.
- Deuterium labeled (d54) for clear mass spectral distinction.
- High purity 99.5% supports accurate quantitation.
- Stable, nonpolar hydrocarbon compatible with GC and MS methods.
- Suitable as a tracer and internal standard in analytical workflows.
- Available in small packaged quantities for laboratory use.
Medchemexpress LLC Triacetonamine-d17 (2,2,6,6-tetramethyl-4-piperidone-d17) | 52168-48-6 | 99.7% | 172.34 | C9D17NO | 10 MG
Triacetonamine-d17 is the deuterium-labeled analog of triacetonamine provided for laboratory research use as an isotopic tracer or internal standard in analytical methods. It is intended for research use only and should be handled according to applicable safety procedures due to reported biological activity in animal models.
- deuterium-labeled tracer for analytical quantitation (NMR, GC-MS, LC-MS).
- 99.7% purity by specification.
- molecular weight 172.34 g/mol.
- cas number 52168-48-6 for unambiguous identification.
- chemical formula C9D17NO.
- packaged as 10 mg quantity.
- store powder at -20°C; in solvent store at -80°C for 6 months or -20°C for 1 month.
Medchemexpress LLC Palmitic acid-2-13C | 287100-87-2 | MFCD00083983 | 98.0% | 10 MG
Palmitic acid-13C is a stable isotope-labeled palmitic acid supplied for use as a tracer or internal standard in analytical and biochemical applications, including GC-MS and LC-MS workflows. It provides a defined isotopic label for metabolic tracing and quantification.
- Used as a tracer and internal standard in GC-MS and LC-MS analyses.
- Stable isotope labeled (13C) fatty acid for metabolic tracing.
- Purity 98.0% as provided.
- CAS number 287100-87-2 for unambiguous identification.
- Provided as a 10 MG package; additional sizes available.
Medchemexpress LLC Deflazacort-d3
Deflazacort-d3 is a isotope of Deflazacort Deflazacort is an inactive proagent and is converted rapidly to the active metabolite 21-desacetyldeflazacort Deflazacort is used as an anti-inflammatory and immunosuppressant[1]
Medchemexpress LLC L-homocysteine-d4 | 331665-12-4 | MFCD01317494 | 94.9% | 139.21 | C4H5D4NO2S | 1 MG
L-Homocysteine-d4 is the deuterium-labeled form of L-homocysteine provided as a neat solid for use as an internal standard and tracer in quantitative analytical methods. It is intended for research and analytical applications such as LC-MS, GC-MS, and NMR, enabling isotope-dilution quantitation and method calibration.
- Deuterium-labeled L-homocysteine for isotope-dilution quantitation.
- High purity suitable for analytical standards and reference materials.
- Supplied as a white to off-white solid stable under sealed storage at 4°C.
- Soluble in water and DMSO with ultrasonic assistance for sample preparation.
- Known chemical formula and molecular weight facilitate accurate mass confirmation during analysis.