Isotopically Labeled Compounds
Medchemexpress LLC Spermidine-d6 trihydrochloride | 98.0% | 260.67 g·mol⁻¹ | C7H16D6Cl3N3 | 1mg
Spermidine-d6 trihydrochloride is the deuterium labeled Spermidine-d6 (trihydrochloride) (HY-W709575)[1]
Medchemexpress LLC N-Acetyl dapsone-d4 | 2070015-08-4 | 98.0% | 294.36 | 5 MG
N-acetyl dapsone-d4 is a deuterium-labeled N-acetyl Dapsone, a metabolite of Dapsone. It is intended for research use only and not for patient use. This compound is valuable as a tracer and as an internal standard for quantitative analysis using techniques such as NMR, GC-MS, or LC-MS.
- 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 Pyraclonil (propyne-13C3 99%) 100 ug/mL in acetonitrile 1 2 mL
Pyraclonil (propyne-13C3 99%) 100 ug/mL in acetonitrile 1 2 mL
Medchemexpress LLC Salbutamol-d9 | 1173021-73-2 | 98.0% | 1 MG
Salbutamol-d9 (Albuterol-d9) is a deuterium-labeled short-acting β2-adrenergic receptor agonist. It serves as a tracer and internal standard for quantitative analysis using techniques such as NMR, GC-MS, or LC-MS. The unlabeled compound, Salbutamol, is known to promote tumorigenesis in gastric cancer cells via the β2-AR/ERK/EMT pathway and can relax bronchial smooth muscle, which is pertinent for studies concerning bronchospasm related to asthma and chronic obstructive pulmonary disease.
- Deuterium-labeled compound for research applications.
- Functions as a tracer for quantitative analysis.
- Can be used as an internal standard in analytical methods.
- Supports research in areas like asthma and chronic obstructive pulmonary disease.
- Relevant for studies on tumorigenesis in gastric cancer cells.
![Revvity Health Sciences Inc Dehydroepiandrosterone Sulfate, Sodium Salt, [1,2,6,7-<sup>3</sup>H(N)]-, 250µCi (9.25MBq)](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502812748.jpg-250.jpg)
Revvity Health Sciences Inc Dehydroepiandrosterone Sulfate, Sodium Salt, [1,2,6,7-3H(N)]-, 250µCi (9.25MBq)
Dehydroepiandrosterone Sulfate, Sodium Salt, [1,2,6,7-3H(N)]-, 250µCi (9.25MBq)
Cambridge Isotope Laboratories VITAMIN B2 (RIBOFLAVIN) (13C4, 99%; 15N2, 98%) CHEM PURITY >97%, 0.01 G, 1217461-14-7
VITAMIN B2 (RIBOFLAVIN) (13C4, 99%; 15N2, 98%) CHEM PURITY >97%, 0.01 G, 1217461-14-7
Cayman Chemical 3β-Cholic Acid-d4, Purity: ≥99% deuterated forms (d1-d4), 5 mg
An internal standard for the quantification of 3β-cholic acid by GC- or LC-MS
Medchemexpress LLC Zofenopril-d5 | 00-00-0 | 99.9% | 434.58 g/mol | C22H18D5NO4S2 | 1 MG
Zofenopril-d5 is a deuterium-labeled analogue of zofenopril intended for research use as an internal standard and tracer in analytical and metabolic studies. The d5 label provides a predictable mass shift for accurate quantification by LC-MS, GC-MS, and NMR while preserving the chemical properties of the parent compound.
- Deuterium labeling (d5) for a clear mass shift in mass spectrometry.
- High purity (99.9%).
- Molecular weight 434.58 g/mol.
- Molecular formula C22H18D5NO4S2.
- Pack size 1 mg suitable for analytical workflows.
- Storage recommendation: -20°C for long-term stability.
- Intended for research use only; not for human or clinical use.
Medchemexpress LLC L-Xylose | 609-06-3 | 97.0% | C5H10O5 | 1 ML
L-Xylose is a rare sugar and the levorotatory form of Xylose. It can be utilized as a raw material for the synthesis of various drugs and bioactive molecules.
- Rare sugar
- Can be used as a raw material for the synthesis of various drugs and bioactive molecules
Medchemexpress LLC Celecoxib-d3 | 544686-18-2 | 99.0% | 384.39 | C17H11D3F3N3O2S | 5 MG
Celecoxib-d3 is a deuterium-labeled analytical reference of celecoxib supplied for research and analytical applications. It is intended as an internal standard for quantitative assays, including LC-MS/MS, to improve accuracy and traceability in pharmacokinetic and metabolic studies.
- Deuterium-labeled internal standard for LC-MS/MS quantitation.
- High chemical purity (99.0%) to ensure reliable analytical performance.
- Molecular weight 384.39 and formula C17H11D3F3N3O2S for exact mass calculations.
- Available in small milligram quantities suitable for analytical workflows.
- Provided with supporting documentation such as datasheet, COA, and SDS.