Isotopically Labeled Compounds
Medchemexpress LLC Aprepitant-d4 5mg | 1133387-60-6 | 538.45 | C23H17D4F7N4O3 | 5 MG
Aprepitant-d4 is the deuterium-labeled analogue of aprepitant, supplied as a powder and intended for use as a stable isotope internal standard in research and analytical laboratories, particularly for LC-MS quantitation.
- Deuterium-labeled internal standard for quantitative LC-MS assays.
- High chemical purity (99.0%).
- Suitable molecular weight and isotopic composition for sensitive detection (MW 538.45).
- Supplied as a stable powder with recommended storage at -20°C for long-term stability.
- High solubility in DMSO (100 mg/mL); warming and sonication recommended.
Medchemexpress LLC Azithromycin-d5 (CP-62993-d5) | 83905-01-5 | MFCD00873574 | >95.0% | 754.02 | C38H67D5N2O12 | 500 UG
Azithromycin-d5 is the deuterium-labeled analogue of azithromycin supplied for research and analytical applications. It is intended as a stable-isotope internal standard or tracer for mass spectrometry, providing closely matched behavior to the unlabeled compound for accurate quantitation in LC-MS/MS assays.
- Deuterium-labeled azithromycin (d5) for use as an internal standard.
- Suitable for LC-MS/MS and quantitative analysis.
- Molecular formula C38H67D5N2O12; molecular weight 754.02.
- Available in small, research-scale amounts for analytical workflows.
- For research use only; not for human or clinical use.
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 Carboplatin-d4 | 41575-94-4 | 99.0% | 375.28 | 5 MG
Carboplatin-d4 is the deuterium labeled Carboplatin. It is a DNA synthesis inhibitor that binds to DNA, inhibits replication and transcription, and induces cell death. This compound is a derivative of CDDP and a potent anti-cancer agent, 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 L-Serine-d3 | 105591-10-4 | 108.11 | 10 MM * 1 ML
L-Serine-d3 is the deuterium-labeled L-Serine, a non-essential amino acid crucial for cellular proliferation. This product can be used as a tracer or as an internal standard for quantitative analysis via NMR, GC-MS, or LC-MS techniques.
- Used as a tracer
- Functions as an internal standard for quantitative analysis
- Suitable for NMR, GC-MS, or LC-MS applications
- Plays a central role in cellular proliferation
Medchemexpress LLC L-Threonine-d2 | 1202936-45-5 | 121.13 | 1 MG
L-Threonine-d2 is the deuterium-labeled form of L-Threonine, a natural amino acid. It is produced through microbial fermentation and finds applications in food, medicine, or animal feed. This compound is intended for research use only and is not sold to patients.
- Deuterium labeled L-Threonine.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Purity: 99.76%.
- Appearance: Solid, white to off-white.
Cambridge Isotope Laboratories SUCCINIC ACID (D6, 98%), 5 G, 21668-90-6
SUCCINIC ACID (D6, 98%), 5 G, 21668-90-6
Cambridge Isotope Laboratories URACIL (5-D, 98%), 0.1 G, 24897-50-5
URACIL (5-D, 98%), 0.1 G, 24897-50-5
Medchemexpress LLC Acetyl CoA Carboxylase 1 (ACC1) Antibody (YA646) | 266 kDa | 50 UL
This antibody is a Rabbit-derived and non-conjugated IgG monoclonal antibody, specifically targeting Acetyl CoA Carboxylase 1 (ACC1). It is suitable for applications such as Western Blot (WB) and Immunohistochemistry-Paraffin (IHC-P).
- Derived from rabbit host.
- Reacts with human and mouse samples.
- Monoclonal antibody for consistent results.
- Predicted molecular weight of 266 kDa.
- Supplied at a concentration of 1 mg/mL.
- Formulated in 1*TBS (pH 7.4), 0.05% BSA, and 40% Glycerol, including 0.05% Sodium Azide as a preservative.
- Stable for 1 year when stored at -20°C; avoid repeated freeze/thaw cycles.
- Shipped with blue ice to maintain stability.
Medchemexpress LLC Carbamazepine-d8 | 1538624-35-9 | 1 MG
Carbamazepine-d8 is the deuterium labeled Carbamazepine. It is a sodium channel blocker and an anticonvulsant agent, with an IC50 of 131 μM. This compound is for research use only and not sold to patients.
- Used as a tracer
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Medchemexpress LLC Hexazinone-d6 | 1219804-22-4 | 98.9% | 5 MG
Hexazinone-d6 is the deuterium labeled Hexazinone, a nonselective herbicide from the triazine family. It inhibits photosynthesis by binding to the D-1 quinone protein of the electron transport chain in photosystem II.
- Deuterium labeled compound
- 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 1-Eicosanol-d41 | 349553-89-5 | 339.80 | 5 MG
1-Eicosanol-d41 (Arachidyl alcohol-d41) is the deuterium labeled 1-Eicosanol, a natural compound with antioxidant activity found in *Justicia insularis* leaves. Deuteration, which involves incorporating stable heavy isotopes into drug molecules, can affect their pharmacokinetic and metabolic profiles. This compound is suitable for use as a tracer or as an internal standard for quantitative analysis.
- Used as a tracer
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Exhibits antioxidant activity
- Potential to influence pharmacokinetic and metabolic drug profiles
Medchemexpress LLC 4-Methylimidazole-d6 | 1219804-79-1 | MFC4D6N2 | 98.3% | 88.14 | 10 MG
This is a stable isotope-labeled compound. It can be utilized as a tracer and as an internal standard for quantitative analysis using techniques such as NMR, GC-MS, or LC-MS. The incorporation of stable heavy isotopes like deuterium into drug molecules is primarily for quantitation during the drug development process, and deuteration can influence 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.
- Stable heavy isotope.
- Potential to affect pharmacokinetic and metabolic profiles.
Cambridge Isotope Laboratories VITAMIN D2 (ERGOCALCIFEROL) (6,19,19-D3, 97%) 100 UG/ML IN ETHANOL, 1 ML, 1217448-46-8
VITAMIN D2 (ERGOCALCIFEROL) (6,19,19-D3, 97%) 100 UG/ML IN ETHANOL, 1 ML, 1217448-46-8
Medchemexpress LLC Isovaleric acid-d2 | 95927-02-9 | 99.49% | 104.14 | 25 MG
Isovaleric acid-d2 is the deuterium labeled Isovaleric acid, a natural fatty acid known to affect neonatal death and possible Jamaican vomiting sickness in humans.
- Can be used as a tracer
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS