Other Solvents
Medchemexpress LLC p-Toluic acid-d3 | 19215-16-8 | >98.0% | 139.17 g/mol | C8H5D3O2 | 10 MG
p-Toluic acid-d3 (4-methylbenzoic acid-d3) is the deuterium-labeled form of p-toluic acid, intended for analytical and synthetic use. It is used as a tracer and internal standard for quantitative analysis by NMR, GC-MS, or LC-MS, and as an intermediate in organic synthesis.
- Used as an internal standard for NMR, GC-MS, and LC-MS quantitative analysis.
- Suitable as a synthetic intermediate for organic chemistry applications.
- Available in small-scale quantities for analytical use, e.g., 10 MG.
- Chemical purity min 98% with isotopic enrichment typically 98 atom % D.
Medchemexpress LLC Isoproturon-d3 | 352438-80-3 | 99.8% | 209.30 | C12H15D3N2O | 10 MG
Isoproturon-d3 is the deuterium-labeled analogue of the phenylurea herbicide isoproturon, supplied as a stable isotope reference standard for analytical and research use. It is designed for use as an internal standard or tracer in quantitative analytical methods, particularly LC-MS, to support environmental fate, residue analysis, and metabolic studies. Supplied in a 10 mg vial with documentation for batch verification.
- Stable deuterium label for accurate quantification in mass spectrometry
- Suitable as an internal standard for environmental residue and metabolism studies
- High reported purity for trace-level analysis
- Provided with supporting documentation such as COA and chromatographic data
- Compact research-grade quantity compatible with routine analytical workflows
Medchemexpress LLC Methoxychlor-d6 | 106031-79-2 | MFCD12022229 | 98.2% | 351.69 g/mol | C16H9D6Cl3O2 | 10 MG
Methoxychlor-d6 is the deuterium-labeled isotopologue of Methoxychlor supplied as a solid research reagent for use as a stable isotope tracer or internal standard in analytical chemistry and mass spectrometry. It offers high chemical purity and isotopic labeling for accurate quantitation and metabolic studies.
- Deuterium-labeled analog suitable as an internal standard.
- High purity for accurate quantitation.
- Soluble in ethanol (100 mg/mL); ultrasonic assistance may be needed.
- Solid, white to off-white, convenient for small-scale handling.
- Supplied in a 10 mg pack for analytical and research use.
Medchemexpress LLC Piperacillin-d5 | 61477-96-1 | 96.0% | 522.59 | C23H22D5N5O7S | 10 MG
Piperacillin-d5 is a deuterium-labeled (d5) analogue of the β-lactam antibiotic piperacillin supplied as a solid powder for use as an internal standard and tracer in quantitative analyses by NMR, GC-MS, and LC-MS. The d5 labeling enables mass-based discrimination with minimal alteration of chemical properties, making it suitable for pharmacokinetic and bioanalytical studies.
- Deuterium-labeled (d5) internal standard for quantitative analysis.
- Solid powder form for analytical sample preparation.
- Purity approximately 96.0%.
- Molecular weight 522.59 g/mol; formula C23H22D5N5O7S.
- Offered in small pack sizes for analytical workflows (for example, 10 mg).
Medchemexpress LLC D-(+)-xylose-2-13C | 131771-69-2 | 99.9% | 151.12 | C5H10O5 (13C at C-2) | 10 MG
Xylose-2-13C is a 13C-labelled form of D-xylose provided as a solid tracer and analytical standard for metabolic and analytical studies. It is suitable as an internal standard or tracer for NMR, GC-MS, and LC-MS quantitative analyses and can be used in biochemical or microbial fermentation research as a carbon source.
- Contains 10 mg of material.
- Purity 99.89%.
- Isotope labeling: 13C at the 2-position.
- CAS number 131771-69-2.
- Molecular weight 151.12 g/mol.
- Solubility: in DMSO ~50 mg/mL; requires ultrasonic and warming; hygroscopic DMSO affects solubility.
- Storage: store protected from light; in solvent: -80°C for 6 months, -20°C for 1 month.
- Appearance: white to off-white solid.
- Intended uses include tracer studies and use as an internal standard in analytical workflows.
Medchemexpress LLC L-lysine-13C dihydrochloride | 202190-50-9 | 99.9% | 220.10 | C5(13C)H16Cl2N2O2 | 10 MG
L-lysine-13C dihydrochloride is a stable-isotope labelled form of the essential amino acid L-lysine, provided as the dihydrochloride salt for tracer, metabolic, and mass-spectrometry studies. It is 13C-labelled at the carboxyl carbon and supplied as a white to off-white solid with high chemical purity.
- 13C-labelled at the carboxyl carbon for tracer and mass-spectrometry applications.
- Provided as the dihydrochloride salt for improved solubility and stability.
- High purity (99.9%) suitable for research use.
- White to off-white solid; molecular weight 220.10 g/mol.
- CAS number 202190-50-9 for unambiguous identification.
- Storage: store sealed at 4°C; in solvent, store at -80°C (6 months) or -20°C (1 month).
Medchemexpress LLC D-glucose-13C | 101615-88-7 | 99.7% | 181.15 | C₅¹³CH₁₂O₆ | 10 MG
D-Glucose-13C is a stable isotope-labeled form of D-glucose used as a metabolic tracer for studies of glucose utilization and metabolic flux. It is suitable for mass spectrometry and NMR applications where 13C labeling enables tracing of carbon flow through biochemical pathways.
- High isotopic labeling (13C) for metabolic tracing.
- High purity: 99.7%.
- Molecular weight: 181.15 g/mol.
- Available in small research pack sizes, including 10 mg.
- Suitable for MS and NMR-based metabolic studies.
Medchemexpress LLC Acetylcholine-d9 bromide | 93449-32-2 | MFCD01073946 | 98.9% | 235.17 | C7H7D9BrNO2 | 10 MG
Acetylcholine-d9 bromide is the deuterium-labeled analogue of acetylcholine bromide used as a stable isotope standard or internal reference for quantitative bioanalytical methods such as LC-MS. It is supplied as a hygroscopic ionic salt in small milligram quantities for use in method development, calibration, and tracer studies.
- Deuterium-labeled internal standard for quantitative analysis.
- High purity suitable for analytical workflows.
- Supplied in small milligram quantities for trace-level assays.
- Molecular formula C7H7D9BrNO2; molecular weight 235.17.
- Store sealed at 4°C and protect from moisture.
Medchemexpress LLC Sulfamethoxazole-d4 | 1020719-86-1 | MFCD03425632 | 98.2% | 257.30 g/mol | C10H7D4N3O3S | 10 MG
Sulfamethoxazole-d4 is a deuterium-labeled analogue of the sulfonamide antibiotic sulfamethoxazole, supplied as a high-purity powder for analytical and tracer applications. Intended as an isotope-labeled internal standard for quantitative LC-MS and related studies; molecular formula C10H7D4N3O3S, molecular weight 257.30 g/mol, CAS 1020719-86-1.
- Deuterium-labeled internal standard for quantitative LC-MS analysis.
- High purity suitable for LC-MS and other analytical methods.
- Powder form for easy dissolution and aliquoting.
- Stable under recommended storage conditions for long-term use.
- Applicable to studies of bacterial folate metabolism and related assays.
Cayman Chemical L-CysteIn-15N-d3 1mg
An internal standard for the quantification of L-cysteine by GC- or LC-MS
Medchemexpress LLC Scutellarein-d6 (6-hydroxyapigenin-d6) | MFCD00017692 | >90.0% | 292.273 g/mol | C15D6H4O6 | 1mg
Scutellarein-d6 (6-Hydroxyapigenin-d6) is deuterium labeled Scutellarein[1]
Medchemexpress LLC L-(-)-xylose-2-13C | 478506-63-7 | 99.0% | 151.12 | C5H10O5 (13C at 2-position) | 10 MG
L-Xylose-2-13C is the 13C-labeled form of L-xylose used as an isotopically labeled standard or tracer in analytical and synthetic applications. It is suitable for use as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS, and as a raw material for synthesis of bioactive molecules.
- Isotopically labeled at the 2-position for precise tracer studies.
- High purity suitable for analytical applications.
- Available in small pack sizes for method development and standards.
- Solid, white to off-white appearance for easy handling.
Medchemexpress LLC 1-Bromoeicosane-d41 10mg
1-Bromoeicosane-d41 is the deuterium labeled 1-Bromoicosane[1]
Medchemexpress LLC 1,2-distearoyl-sn-glycero-3-phosphocholine-d70 | 56952-01-3 | >99.0% | 860.58 g/mol | C44H18D70NO8P | 1 MG
DSPC-d70 (1,2-distearoyl-sn-glycero-3-phosphocholine-d70) is the deuterium-labeled form of a fully saturated phospholipid used in liposome and lipid nanoparticle research and analytical isotope-labeling studies. The d70 isotopologue replaces hydrogen with deuterium to enable improved detection in mass spectrometry and NMR, and to act as an isotopic tracer in formulation stability and biodistribution experiments.
- Deuterium-labeled phospholipid for isotope tracing and analytical studies.
- Suitable for liposome and lipid nanoparticle formulations.
- High molecular weight and full saturation for stable bilayer formation.
- Useful in mass spectrometry and NMR applications to simplify spectral interpretation.
- Available in small pack sizes for research-scale experiments.