Isotopically Labeled Compounds
![Revvity Health Sciences Inc Somatostatin, [<sup>125</sup>I]Tyr<sup>11</sup>, 10µCi](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502810968.jpg-250.jpg)
Medchemexpress LLC Betaine-d3 chloride | 1219349-47-9 | 98.6% | 156.63 g/mol | C5H9D3ClNO2 | 10 MG
Betaine-d3 chloride is the deuterium-labeled form of betaine chloride intended for use as an isotopic tracer and internal standard in quantitative NMR, GC-MS, and LC-MS analyses for research applications.
- Deuterium-labeled internal standard for quantitative NMR, GC-MS, and LC-MS.
- Reported purity 98.6%.
- Molecular weight 156.63 g/mol.
- Molecular formula C5H9D3ClNO2.
- Available in a 10 mg package suitable for analytical workflows.
- For research use only; not for human or clinical use.
Medchemexpress LLC Balsalazide-d4 | 2714315-25-8 | 361.34 | C17H11D4N3O6 | 10 MG
Balsalazide-d4 is a deuterium-labeled analogue of balsalazide intended for use as an analytical/internal standard and research reagent in biochemical and pharmacological studies, particularly those involving interleukin and STAT3 signaling. It is supplied as a 10 mg solid with documented storage and solubility information to support analytical workflows.
- Deuterium-labeled isotopic standard for analytical assays
- Provided as 10 mg of solid suitable for LC-MS and quantitative analysis
- Molecular formula C17H11D4N3O6; molecular weight 361.34
- Soluble in DMSO at 50 mg/mL; ultrasonic assistance may be required
- Storage guidance: powder at -20°C (3 years) or 4°C (2 years); in solvent at -80°C (6 months)
- Suitable for metabolic tracing, quantitation, and mechanism-of-action studies
Cambridge Isotope Laboratories "CELL FREE" AMINO ACID MIX (20 AA) (U-13C, 97-99%; U-15N, 97-99%), 1 G
"CELL FREE" AMINO ACID MIX (20 AA) (U-13C, 97-99%; U-15N, 97-99%), 1 G
![Medchemexpress LLC Phenol, 4,4′-[1-(methyl-d3)ethylidene-2,2,2-d3]bis- | 86588-58-1 | 99.7% | 234.32 | 25 MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000384190-logo.png-250.jpg){kind=logo}
Medchemexpress LLC Phenol, 4,4′-[1-(methyl-d3)ethylidene-2,2,2-d3]bis- | 86588-58-1 | 99.7% | 234.32 | 25 MG
Bisphenol A-d6 is the deuterium-labeled Bisphenol A. Bisphenol A is a phenolic, organic synthetic compound used in the production of polycarbonate plastics and epoxy resins. It is classified as an endocrine-disrupting compound (EDC) and is associated with various diseases, including cardiovascular diseases, respiratory diseases, diabetes, kidney diseases, obesity, and reproductive disorders.
- 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 for quantitation during drug development.
- Deuteration can affect the pharmacokinetic and metabolic profiles of drugs.
BIOHIPPO GAL4-TAR-BSD LV
GAL4-TAR-BSD is a transcription factor reporter lentiviral vector designed to monitor transcription factor pathways in living cells This construct delivers a RFP reporter cassette together with a Blasticidin selection marker for generation of stable cell pools The vector is provided as a ready to use Lentivirus preparation pseudotyped with VSV-G for efficient gene delivery and stable genomic integration Each vial provides a nominal titer of 5x10E6 transducing units TU Typical applications include Identification of protein-protein interactions (PPI) and as a reporter in mammalian two-hybrid assay The system is suitable for use with Human/mouse and can support assay development high content screening and mechanism of action studies This product is intended for research use only and is not for diagnostic or therapeutic procedures
Medchemexpress LLC DL-Tryptophan-d3 | 340257-61-6 | 99.3% | 207.24 | 5 MG
DL-Tryptophan-d3 is the deuterium labeled DL-Tryptophan, an endogenous metabolite. It is intended for research use only.
- 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 Ribitol-1-13C (Adonitol-1-13C) | 488-81-3 | 99.5% | 153.14 g/mol | C5H12O5 (1-13C) | 5 MG
Ribitol-1-13C is a carbon-13 labeled ribitol supplied as a high-purity stable isotope reagent for analytical and tracer applications. It is intended for use as an internal standard in metabolomics and isotope-tracing experiments, is highly water-soluble, and requires protection from light and storage under an inert atmosphere for long-term stability.
- High chemical purity (≈99.5%).
- Isotopic label at the carbon-1 position (13C) for tracing experiments.
- Suitable as an internal standard in metabolomics and mass spectrometry.
- Water-soluble; may require ultrasonic assistance to dissolve at high concentrations.
- Stable when stored under nitrogen and protected from light; in solvent: -80°C (≈6 months), -20°C (≈1 month).
- Crystalline powder form, easy to handle for sample preparation.
Medchemexpress LLC N-tert-butoxycarbonyl-2-aminoacetic acid-d2 | 42492-65-9 | 98.0% | 177.19 | C7H11D2NO4 | 5mg
Boc-Glycine-d2 is the deuterium labeled Boc-Glycine[1]
Medchemexpress LLC Veratrole-d4 (1,2-dimethoxybenzene-d4) | 126840-15-1 | 100 MG
Veratrole-d4 is a deuterium-labeled version of Veratrole (1,2-Dimethoxybenzene). Veratrole is a significant plant compound that widely exists in plants and attracts pollinators. Its release follows a circadian rhythm, impacting plant reproduction, species differentiation, and interactions with pollinators. Additionally, Veratrole can be demethylated by cytochrome P-450 in Streptomyces setonii.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
Cambridge Isotope Laboratories ETHYLENE (TRANS-1,2-D2, 98%), 1 L, 1517-53-9
ETHYLENE (TRANS-1,2-D2, 98%), 1 L, 1517-53-9
Medchemexpress LLC Rhamnose-13C-2 monohydrate | 478511-54-5 | 183.16 | 1 MG
Rhamnose-13C-2 (monohydrate) is the 13C labeled Rhamnose monohydrate. Rhamnose monohydrate (L-Rhamnose monohydrate) is a monosaccharide found in plants and bacteria. Rhamnose monohydrate-conjugated immunogens is used in immunotherapies.
- 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.
Cambridge Isotope Laboratories cis-DCCA (1 carboxyl-13C2 99% 1-D 97%) 100 ug/mL in acetonitrile-D3 1 2 mL
cis-DCCA (1 carboxyl-13C2 99% 1-D 97%) 100 ug/mL in acetonitrile-D3 1 2 mL
Medchemexpress LLC Stearic acid-d7 | 951209-59-9 | 98.0% | 291.52 g/mol | C18H29D7O2 | 10 MG
Stearic acid-d7 is the deuterium-labeled analogue of stearic acid used as an isotopic internal standard and tracer in mass spectrometry and metabolic studies. It is chemically identical to native stearic acid but contains seven deuterium atoms, allowing mass differentiation while preserving chromatographic behavior. Supplied at high purity for analytical applications.
- Deuterium-labeled (d7) stearic acid
- High purity (98.0%)
- Molecular weight 291.52 g/mol
- Suitable as an internal standard for LC-MS/MS and GC-MS quantitation
- Provided as a 10 MG analytical pack
Cambridge Isotope Laboratories 17-ALPHA-ETHYNYLESTRADIOL (2,4,16,16-D4, 97-98%), 0.01 G, 350820-06-3
17-ALPHA-ETHYNYLESTRADIOL (2,4,16,16-D4, 97-98%), 0.01 G, 350820-06-3