Isotopically Labeled Compounds
Medchemexpress LLC Oxybutynin-d11 chloride | 1185151-95-4 | MFCD06658724 | 97.4% | 405.02 g·mol⁻¹ | C22H21D11ClNO3 | 10 MG
Oxybutynin-d11 chloride is a deuterium-labeled isotopologue of oxybutynin chloride intended as a stable-isotope reference standard for analytical, pharmacokinetic, and mass-spectrometry studies. Supplied as the chloride salt with defined molecular weight and high purity, it is suitable for use as an internal standard to improve quantitation and identification in LC-MS and GC-MS workflows.
- Deuterium-labeled internal standard for LC-MS and GC-MS.
- High chemical purity (97.4%) and isotopic labeling for reliable quantitation.
- Supplied as a chloride salt with known molecular formula and molecular weight for accurate calculations.
- Soluble in DMSO for convenient sample preparation.
Cambridge Isotope Laboratories NITROBENZENE (15N, 98%+), 1 G, 3681-79-6
NITROBENZENE (15N, 98%+), 1 G, 3681-79-6
STA PHARMACEUTICAL US LLC Fmoc-L-Asp-OAll | 25 g | CAS 144120-53-6 | MDL MFCD00467715
Fmoc-L-Asp-OAll is a Amino Acid reagent (Subcategory: Asp) sold by WuXi TIDES. Offered in 25 g. Store at 4 °C. SDS available for reference.
Specifications
- CAS: 144120-53-6
- MDL: MFCD00467715
- InChIKey: ZJMVIWUCCRKNHY-IBGZPJMESA-N
- Molecular Weight: 395.411
- Molecular Formula: C22H21NO6
- Purity: ≥95%
- Container Type: 125 mL HDPE
- Pack Size: 25 g
- Net Weight: 25 g
- Gross Weight: 54.3 g
- Commodity Code: 29242970
- Country Of Origin: China
- IUPAC: (S)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-(allyloxy)-4-oxobutanoic acid
- SMILES: C=CCOC([C@H](CC(O)=O)NC(OCC1C2=CC=CC=C2C3=CC=CC=C31)=O)=O
Cambridge Isotope Laboratories L-GLUTAMIC ACID (2,3,3,4,4-D5, 98%), 0.05 G, 2784-50-1
L-GLUTAMIC ACID (2,3,3,4,4-D5, 98%), 0.05 G, 2784-50-1
Medchemexpress LLC Escitalopram-d6 oxalate | 1217733-09-9 | C22H17D6FN2O5 | 1 MG
Escitalopram-d6 oxalate is a deuterium-labeled form of Escitalopram oxalate, a selective serotonin reuptake inhibitor (SSRI) with high binding affinity and selectivity. It is an antidepressant used in research for major depression. Deuterium-labeled compounds are valuable as tracers and internal standards in drug development and quantitative analysis.
- Deuterium labeled compound
- Functions as a selective serotonin reuptake inhibitor (SSRI)
- Applicable as a tracer in research
- Suitable as an internal standard for quantitative analysis (NMR, GC-MS, LC-MS)
- Used for major depression research
- Contains stable heavy isotopes for drug development quantitation
![Revvity Health Sciences Inc Acetic Acid, sodium salt -[1-<sup>14</sup>C]](https://assets.fishersci.com/TFS-Assets/CCG/product-images/VN00001872-502097583.JPG-250.jpg)
Cayman Chemical 13-OxoDE-d3 100ug
An internal standard for the quantification of 13-OxoODE by GC- or LC-MS
Medchemexpress LLC Paricalcitol-d6 | 2070009-67-3 | 99.9% | 422.67 g/mol | C27H38D6O3 | 10 MG
Paricalcitol-d6 is the deuterium-labeled analogue of paricalcitol provided as a high-purity research standard for use as a tracer and internal standard in quantitative analytical workflows.
- Deuterium-labeled internal standard for LC-MS and GC-MS.
- Suitable as an NMR reference and tracer in metabolic studies.
- High purity for accurate quantitation (99.85%).
- Supplied as a small-scale powder; store cold to preserve stability.
Medchemexpress LLC Deflazacort-d3 | 2280940-17-0 | 444.54 | C25H28D3NO6 | 1 MG
Deflazacort-d3 is a deuterated isotope-labeled analog of deflazacort used as an analytical internal standard for quantitative assays and mass spectrometry. Supplied in small milligram pack sizes for laboratory research; consult the certificate of analysis for purity and storage instructions.
- Deuterated internal standard for accurate quantitation in LC-MS/MS assays.
- Offered in milligram quantities suitable for analytical workflows.
- Molecular formula C25H28D3NO6; molecular weight 444.54.
- CAS number 2280940-17-0 for unambiguous identification.
- Datasheet and handling instructions available; check CoA for purity.
Medchemexpress LLC Alanine-2,3,3,3-d4 | 53795-92-9 | MFCD00084108 | 99.8% | 93.12 | C3H3D4NO2 | 100 MG
Alanine-2,3,3,3-d4 is a deuterium-labeled alanine used as a stable-isotope tracer and internal standard for research and analytical workflows. It supports accurate quantitation and method development in biochemical and pharmacokinetic studies, dissolves readily in water, and is supplied with recommended storage conditions for long-term stability.
- Deuterium-labeled alanine for tracer and internal standard use.
- High purity (≈99.8%) suitable for quantitative analysis.
- Soluble in water (≥ 50 mg/mL) for straightforward sample preparation.
- Stable as a powder under frozen storage for long-term use.
- Compatible with NMR, GC-MS, and LC-MS analytical methods.
Cambridge Isotope Laboratories 3-CHLOROTYROSINE:HCL (13C9, 98%; 15N, 98%), CP: 95%, 1 MG
3-CHLOROTYROSINE:HCL (13C9, 98%; 15N, 98%), CP: 95%, 1 MG
Cambridge Isotope Laboratories SODIUM PYRUVATE (13C3, 99%), 1 G, 142014-11-7
SODIUM PYRUVATE (13C3, 99%), 1 G, 142014-11-7
Medchemexpress LLC o-Toluic acid-13C | 70838-82-3 | 99% | 137.14 | 5 MG
o-Toluic acid-13C is the 13C labeled o-Toluic acid. It is a benzoic acid substituted by a methyl group at position 2, playing a role as a xenobiotic metabolite. This compound is intended for research use only and is not for sale to patients.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Incorporates stable heavy isotopes of hydrogen, carbon, and other elements into drug molecules as tracers for quantitation during the drug development process.
- Potential to affect the pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC Thiophanat-ethyl-d10 | 1398066-16-4 | 98.0% | 380.51 | C14H8D10N4O4S2 | 5 MG
Thiophanat-ethyl-d10 is the deuterium-labeled (d10) isotopologue of thiophanat-ethyl provided as a powder reference standard for analytical and research use. It is intended as an internal standard or tracer in quantitative, metabolic, and pharmacokinetic studies and should be stored per recommended conditions.
- Deuterium-labeled d10 isotopologue.
- Powder form with recommended storage at -20°C for long-term stability.
- Intended for use as an isotope-labeled reference standard and tracer.
- Molecular formula C14H8D10N4O4S2; molecular weight 380.51.
- Suitable for quantitative and metabolic/pharmacokinetic workflows.
Medchemexpress LLC Octanoic acid-d3 | 156779-05-4 | 99.1% | 147.23 | 5 MG
Octanoic acid-d3 is the deuterium labeled Octanoic acid. Octanoic acid (Caprylic acid) is an oily liquid with a slightly unpleasant rancid taste and used commercially in the production of esters used in perfumery and also in the manufacture of dyes.
- This compound can be used as a tracer.
- This compound can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.