Isotopically Labeled Compounds
Medchemexpress LLC Sitagliptin-d4 phosphate | 1432063-88-1 | MFCD25973056 | 99.5% | 509.33 | C16H14D4F6N5O5P | 5 MG
Sitagliptin-d4 phosphate is the deuterium-labeled isotopologue of sitagliptin phosphate used as an analytical reference standard. It is intended for LC-MS/MS quantitation, method development, and pharmacokinetic studies, providing consistent mass shift for accurate internal standardization and reliable assay performance.
- Deuterium-labeled internal standard for LC-MS/MS quantitation.
- High chemical purity and confirmed isotopic enrichment.
- Suitable for method development, calibration, and pharmacokinetic studies.
- Provided as a phosphate salt for stability and solubility.
- Available in small-mass package sizes suitable for analytical use.
Medchemexpress LLC L-ornithine-d7 hydrochloride | 2483831-57-6 | 99.9% | 175.67 | C5H6D7ClN2O2 | 5 MG
L-ornithine-d7 hydrochloride is the deuterium-labeled hydrochloride salt of L-ornithine used as an internal standard and reference material for analytical workflows. Supplied as a white to off-white solid, it is intended for quantitative mass spectrometry, metabolomics, and isotope tracing studies where isotopic labeling is required.
- Deuterium-labeled internal standard for quantitative LC-MS/MS.
- High isotopic and chemical purity (reported ≈99.9%) for accurate quantitation.
- Hydrochloride salt form, stable solid suitable for storage and handling.
- Useful in metabolomics, isotope tracing, and method validation workflows.
- Available in small research-scale sizes for trace-level studies.
Medchemexpress LLC Ethyl octanoate-d15 | 1219798-38-5 | 98.5% | 187.36 | C10H5D15O2 | 50 MG
Ethyl octanoate-d15 is the deuterium-labeled analogue of ethyl octanoate provided for use as a stable-isotope tracer and internal standard in analytical chemistry. It is intended for mass spectrometry, tracer studies, and quantitative analysis where isotopic distinction from the native compound is required.
- Deuterium-labeled (d15) ethyl octanoate for isotopic tracing.
- High chemical purity (98.5%) suitable for analytical use.
- Suitable as an internal standard for mass spectrometry and quantitative analysis.
- Colorless to light yellow liquid with density 0.867 g/cm³.
- Available in small, research-scale quantities (mg-range).
- Certificate of analysis and safety data sheet available.
![Revvity Health Sciences Inc L-[Methyl-<sup>3</sup>H]-Methionine,>97%, 1mCi (37MBq)](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502812838.jpg-250.jpg)
Revvity Health Sciences Inc L-[Methyl-3H]-Methionine,>97%, 1mCi (37MBq)
L-[Methyl-3H]-Methionine,>97%, 1mCi (37MBq)
Medchemexpress LLC Fmoc-Cys(Trt)-OH-d2 | 360565-11-3 | 587.72 | 10 MG
Fmoc-Cys(Trt)-OH-d2 is the deuterium labeled Fmoc-Cys(Trt)-OH. This N-terminal protected cysteine derivative is 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-Glucose-13C | 478519-02-7 | 98.0% | 181.15 | 50 MG
L-Glucose-13C is the 13C labeled L-Glucose, an enantiomer of D-glucose. It is for research use only and can promote food intake. This compound can be used as a tracer or as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS. Stable heavy isotopes have been incorporated into drug molecules for quantitation during the drug development process.
- Used as a tracer
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Medchemexpress LLC DL-Tryptophan-d3 | 340257-61-6 | 99.3% | 207.24 | 5 MG
DL-Tryptophan-d3 is the deuterium labeled DL-Tryptophan, an endogenous metabolite. It is 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
American Radiolabeled Chemicals Inc RETINYL PALM-9 10-3H 250UC
Retinyl palmitate-palmitoyl-9,10-3H 250uCi in toluene, 1 mCi/ml, S.A. 50-60 Ci/mmol, M.W. 524.9, Shipped in Dry Ice, Exclusive
American Radiolabeled Chemicals Inc L-AP4-3H 250UC
L-AP4-3H 250uCi in ethanol:water (1:1), 1 mCi/ml, S.A. 30-60 Ci/mmol, M.W. 183.10, Shipped in Dry Ice, Exclusive, (L-(+)-2-Amino-4-phosphono-2,3-3H-butyric acid)
Cayman Chemical GuaIfensIn-d3 500ug
An internal standard for the quantification of guaifenesin by GC- or LC-MS
![Medchemexpress LLC 8-[4-(1-aminocyclobutyl)phenyl]-9-phenyl-2H-triazolo[3,4-f]naphthyridin-3-one | 1032349-77-1 | 99.7% | 443.93 | C25H22ClN5O | 1 ML](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000241929.png-250.jpg)
Medchemexpress LLC 8-[4-(1-aminocyclobutyl)phenyl]-9-phenyl-2H-triazolo[3,4-f]naphthyridin-3-one | 1032349-77-1 | 99.7% | 443.93 | C25H22ClN5O | 1 ML
MK-2206 is an orally active, potent, and selective allosteric inhibitor of Akt provided as a 10 mM solution (1 mL) for research applications. It is used to probe Akt signaling and downstream processes such as apoptosis and autophagy in cell-based and organoid models.
- Highly potent and selective allosteric Akt inhibition suitable for signaling studies.
- Ready-to-use 10 mM solution (1 mL) for convenient dosing and assay setup.
- High purity (>98%) for reliable experimental results.
- Applicable to studies of apoptosis, autophagy, and organoid biology.
- Documented chemical identity and molecular data for traceability.
Medchemexpress LLC Cer6-2'r-d9 | 2260670-10-6 | 99.0% | 580.97 | 1 MG
CER6-2'R-d9 is a deuterium-labeled variant of CER6-2'R, designed for research applications. It functions as a tracer or an internal standard, facilitating quantitative analysis across various advanced spectroscopic techniques.
- Deuterium-labeled compound
- Acts as a tracer for research
- Serves as an internal standard for quantitative analysis
- Compatible with NMR, GC-MS, and LC-MS analytical methods
- Intended for research use only
Medchemexpress LLC Progesterone-d9 | 15775-74-3 | 323.52 | 1 MG
Progesterone-d9 is a deuterium-labeled version of Progesterone, a steroid hormone vital for regulating the menstrual cycle and pregnancy. Intended for research use only, it can be used as a tracer or an internal standard in quantitative analysis. Deuteration, the incorporation of stable heavy isotopes, can influence the pharmacokinetic and metabolic profiles of drugs.
- Can be used as a tracer in research applications
- Functions as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Deuterium labeling can impact pharmacokinetic and metabolic profiles of drugs
- For research use only, not for patient use