Isotopically Labeled Compounds
Medchemexpress LLC Tridecanoic acid-d2 | 64118-44-1 | 5mg
Tridecanoic acid-d2 is the deuterium labeled Tridecanoic acid Tridecanoic acid (N-Tridecanoic acid) a 13-carbon medium-chain saturated fatty acid can serve as an antipersister and antibiofilm agent that may be applied to research bacterial infections Tridecanoic acid inhibits Escherichia coli persistence and biofilm formation[1]
Medchemexpress LLC Methyl Eugenol-13C,d3 | 93-15-2 | 5 MG
Methyl Eugenol-13C,d3 is the 13C- and deuterium-labeled form of Methyl Eugenol, a naturally occurring phenylpropanoid chemical. This compound, found in plant leaves, fruits, stems, and roots, can be released when plant parts are damaged. It is utilized in the male annihilation of the oriental fruit fly and is strictly for research purposes. The labeled compound serves as a valuable tracer and internal standard for quantitative analysis using techniques such as NMR, GC-MS, or LC-MS.
- Stable isotope-labeled compound
- Useful as a tracer in research
- Functions as an internal standard for quantitative analysis
- Derived from naturally occurring phenylpropanoid
![Revvity Health Sciences Inc Enkephalin (2-D-Alanine-5-D-Leucine), [Tyrosyl-3,5-<sup>3</sup>H(N)]-, 250µCi (9.25MBq)](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502812376.jpg-250.jpg)
Revvity Health Sciences Inc Enkephalin (2-D-Alanine-5-D-Leucine), [Tyrosyl-3,5-3H(N)]-, 250µCi (9.25MBq)
Enkephalin (2-D-Alanine-5-D-Leucine), [Tyrosyl-3,5-3H(N)]-, 250µCi (9.25MBq)
American Radiolabeled Chemicals Inc 3H STNDRD PLASTIC-1 A
Tritium Standards on Plastic Strips-1 each, 0-7390
Medchemexpress LLC Spermine-d20 (deuterium-labeled spermine) | 71-44-3 | >95.0% | 222.46 g/mol | C10H6D20N4 | 50 MG
Spermine-d20 is a deuterium-labeled form of spermine used as a stable isotope internal standard and tracer for analytical and biochemical workflows. It provides a predictable mass shift while retaining the chemical properties of unlabeled spermine, enabling accurate quantitation and tracing in LC-MS and isotopic studies.
- Deuterium-labeled internal standard for mass spectrometry quantitation.
- Suitable as a tracer in metabolic and pharmacokinetic studies.
- Maintains native chemical behavior while providing mass differentiation.
- Typical purity >95% (HPLC), suitable for analytical use.
- Available in small pack sizes for laboratory use.
Medchemexpress LLC Nadolol-d9 (SQ-11725-d9) | 94513-92-5 | 97.0% | 318.46 | C17H18D9NO4 | 10 MG
Nadolol-d9 is the deuterium-labeled analog of nadolol, a non-selective, orally active β-adrenergic receptor blocker used for analytical and research applications as a tracer or internal standard.
- Deuterium-labeled internal standard for quantitative analysis by NMR, GC-MS, and LC-MS.
- Non-selective β-adrenergic receptor blocker analog suitable for tracer and pharmacokinetic studies.
- High purity (97.0%) for reliable analytical performance.
- Molecular formula C17H18D9NO4 and molecular weight 318.46 g/mol.
- Off-white to light yellow solid appearance.
- Storage: powder at -20°C (3 years) or 4°C (2 years); in solvent at -80°C (6 months) or -20°C (1 month).
- Available in small analytical quantities, including 10 mg packs.
Cambridge Isotope Laboratories Glycan-O16-13C-Gal4 (galactose-13C6 99%) 500 pmol
Glycan-O16-13C-Gal4 (galactose-13C6 99%) 500 pmol
Medchemexpress LLC Psychosine-d5 (galactosylsphingosine-d5) | 2260670-12-8 | 99.0% | 466.66 | 100 UG
Psychosine-d5 is deuterium labeled Psychosine. Psychosine is a substrate of the galactocerebrosidase (GALC) enzyme and is a potential biomarker for Krabbe disease. It is a highly cytotoxic lipid that can induce cell death in various cell types.
- 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 like deuterium have the potential to affect the pharmacokinetic and metabolic profiles of drugs
American Radiolabeled Chemicals Inc PYY 125I 50UC
Peptide YY-125I (human) 10uCi in buffered solution (pH 7.4), 0.08 mCi/ml, S.A. 2200 Ci/mmol, M.W. 4432, Shipped in Dry Ice
Medchemexpress LLC N-Nonanoylglycine-d2 | 3008541-78-1 | ≥95.0% | 217.30 | C11H19D2NO3 | 10 MG
N-Nonanoylglycine-d2 is a deuterium-labeled analogue of N-nonanoylglycine intended for use as a stable isotope internal standard in analytical workflows such as liquid chromatography-mass spectrometry. It is supplied as a powdered reference material suitable for calibration, quantitation, and method validation in research and analytical laboratories.
- Stable isotope-labeled internal standard for quantitative mass spectrometry.
- Deuterium (d2) label provides a clear mass shift for selective detection and quantitation.
- High purity suitable for analytical reference and calibration.
- Available in small mass quantities for trace-level and method development work.
- Supplied as a powder for straightforward storage and handling.
Medchemexpress LLC Sulfamethoxazole-d4 | 1020719-86-1 | 99.3% | 1 MG
Sulfamethoxazole-d4 is a deuterium-labeled sulfonamide antibiotic with broad antibacterial activity. It functions by inhibiting bacterial folate metabolism through competition with 4-Aminobenzoic acid (PABA) for dihydropteroate synthetase and dihydropteroate reductase. This compound is suitable for studies of urinary tract infections (UTIs), prostatitis, and bronchitis.
- Can be used as a tracer
- Can be used as an internal standard for quantitative analysis
- Deuteration may affect pharmacokinetic and metabolic profiles of drugs
- Available in solid form
American Radiolabeled Chemicals Inc ANTIPYRINE-3H 250UC
Antipyrine-3H(G) 250uCi in ethanol, 1 mCi/ml, S.A. 20-30 Ci/mmol, M.W. 188.23, Exclusive
Medchemexpress LLC Lansoprazole-d4 | 934294-22-1 | MFCD06658717 | 99.8% | 373.39 | C16H10D4F3N3O2S | 5 MG
Lansoprazole-d4 is a deuterium-labeled analogue of lansoprazole intended as a stable-isotope internal standard for analytical and research use. It is designed for quantitative mass spectrometry, pharmacokinetic studies, and method development to support accurate measurement of lansoprazole in biological and chemical matrices. The compound contains four deuterium atoms and is supplied with high purity for analytical workflows.
- Deuterium-labeled (d4) analogue for use as an internal standard.
- High purity for reliable analytical results.
- Suitable for LC-MS/MS and GC-MS quantification.
- Enables accurate pharmacokinetic and bioanalysis studies.
- Supplied in small milligram quantities for analytical workflows.
- Molecular weight 373.39 and CAS 934294-22-1 for unambiguous identification.
Cambridge Isotope Laboratories Chenodeoxycholic acid (2 2 4 4-D4 98%) 100 ug/mL in methanol 1 mL
Chenodeoxycholic acid (2 2 4 4-D4 98%) 100 ug/mL in methanol 1 mL