Alcohols and polyols
Medchemexpress LLC Glycodeoxycholic acid-d4 | 1069132-37-1 | MFCD06658888 | 99.9% | 453.65 | C26H39D4NO5 | 1MG
Glycodeoxycholic acid-d4 is the deuterium-labeled form of the endogenous bile acid glycodeoxycholic acid, provided as a stable isotope internal standard for quantitative analytical methods such as LC-MS and GC-MS. It is intended for use in metabolomics and bioanalytical assays where isotopically labeled standards are required; storage and solubility instructions are provided to preserve analytical integrity.
Medchemexpress LLC Calcifediol-d6 | 78782-98-6 | MFCD15071183 | 99.1% | C27H38D6O2 | 10MG
Calcifediol-d6 is the deuterium-labeled form of calcifediol (25-hydroxyvitamin D3), supplied as an isotopically labeled internal standard for analytical and research applications. It is intended for quantitative mass spectrometry, metabolic profiling, and receptor binding studies, where a close mass match to the native analyte improves accuracy and precision.
- Deuterium-labeled internal standard for LC-MS/MS quantification.
- High isotopic purity for accurate mass resolution.
- Reported purity 99.1%.
- Molecular formula C27H38D6O2 and molecular weight ~406.7 g/mol.
- Available in multiple pack sizes suitable for analytical workflows.
Medchemexpress LLC BODIPY 576/589 | 150173-78-7 | 96.18% | 329.11 | 1 ML
BODIPY 576/589 is a long-wavelength biological labeled dye that contains a free COOH-group, with Em/Ex = 589/576 nm. It is for research use only and not sold to patients.
- Long wavelength biological labeled dye.
- Contains a free COOH-group.
- Emission (Em) at 589 nm.
- Excitation (Ex) at 576 nm.
Medchemexpress LLC Deoxycholic acid-d4 | 112076-61-6 | MFCD00209707 | 98.0% | 396.60 | C24H36D4O4 | 10 MG
Deoxycholic acid-d4 is a deuterium-labeled analogue of deoxycholic acid used as an isotope-labeled reference standard in analytical and biochemical applications. It is intended for use in quantitative LC-MS/MS assays, metabolic tracing, and receptor activation studies involving bile acid signaling.
- Deuterium-labeled (d4) analogue for mass spectrometry internal standard use.
- High purity suitable for analytical applications, listed at 98.0% purity.
- Molecular weight approximately 396.60 Da, molecular formula C24H36D4O4.
- Suitable for quantitative LC-MS/MS and metabolic tracing workflows.
- Offered in small analytical pack sizes for reference standard use.
Medchemexpress LLC Cholan-24-oic-2,2,4,4-d4 acid, 3-hydroxy-, (3α,5β)- | 83701-16-0 | 99.7% | 5 MG
Lithocholic acid-d4 is a deuterium labeled form of lithocholic acid, which is a toxic secondary bile acid. It appears as a white to off-white solid and is intended for research use only.
- Deuterium labeled compound
- Suitable for use as a tracer
- Functions as an internal standard for quantitative analysis via NMR, GC-MS, or LC-MS
- Presented as a white to off-white solid
Medchemexpress LLC 2-Phenylethyl isothiocyanate-d5 | 912627-98-6 | 168.27 | C9H4D5NS | 10 MG
2-Phenylethyl isothiocyanate-d5 is the deuterated analogue of 2-phenylethyl isothiocyanate supplied as an analytical reference standard for research. It is intended for use as an internal standard in mass spectrometry and isotopic tracing studies, providing an isotopically labeled counterpart to the unlabeled analyte for accurate quantitation and method validation.
- Deuterium-labeled internal standard for mass spectrometry.
- Suitable for isotopic tracing and quantitative analysis.
- Chemical identity mirrors the unlabeled analyte for accurate quantitation.
- Provided in small sealed vials appropriate for laboratory use.
- Data sheet and handling instructions available.
Medchemexpress LLC Glycochenodeoxycholic acid-d4 (Chenodeoxycholylglycine-d4) | 1201918-16-2 | 5 MG
Glycochenodeoxycholic acid-d4 is the deuterium labeled Glycochenodeoxycholic acid. Glycochenodeoxycholic acid (Chenodeoxycholylglycine) is a bile acid formed in the liver from chenodeoxycholate and glycine. It acts as a detergent to solubilize fats for absorption and is itself absorbed. Glycochenodeoxycholic acid (Chenodeoxycholylglycine) induces hepatocyte apoptosis.
- 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.
- Stable heavy isotopes of hydrogen, carbon, and other elements can affect the pharmacokinetic and metabolic profiles of drugs.
- Purity: 99.95%.
Medchemexpress LLC 1,4,7,10-tetraazacyclododecane-1,7-diacetic acid, 1,7-bis(1,1-dimethylethyl) ester | 162148-48-3 | MFCD09263303 | 98.0% | 400.56 g·mol⁻¹ | C20H40N4O4 | 5 G
DO2A-tert-butyl ester is a tert-butyl-protected DOTA-like bifunctional chelator used as a synthetic building block for preparing metal-chelator conjugates and radionuclide-labeled probes in biochemical and radiochemistry applications. The compound has molecular formula C20H40N4O4 and a molecular weight of 400.56 g·mol⁻¹; store protected from light at 4°C and follow solvent storage guidelines for long-term stability.
- Suitable for chelator-biomolecule conjugation
- Protected ester functionality for controlled deprotection
- Applicable for radionuclide labeling workflows
- Solid reagent with defined molecular composition
- Stable under recommended storage conditions
Medchemexpress LLC Biotin-PEG6-alcohol | 906099-89-6 | 99.3% | C22H41N3O8S | 50 MG
Biotin-PEG6-alcohol is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs.
- Biotin-labeled: This feature allows for specific targeting or detection in various biological assays due to biotin's high affinity for streptavidin.
- PEG-based PROTAC linker: The polyethylene glycol (PEG) chain provides flexibility and enhances solubility, which are advantageous properties for the development of PROTACs (Proteolysis Targeting Chimeras).
- Application in PROTAC synthesis: It functions as a key component in the creation of PROTACs.
- Mechanism of PROTACs: PROTACs operate by harnessing the intracellular ubiquitin-proteasome system to achieve the selective degradation of target proteins.
Medchemexpress LLC Lithocholic acid-d4 | 83701-16-0 | 99.9% | 380.60 | C24H36D4O3 | 10 MG
Lithocholic acid-d4 is the deuterium-labeled isotopologue of lithocholic acid supplied as a purified powder for use as an internal standard, tracer, or analytical reference in biochemical and analytical chemistry applications. Manufacturer-provided purity, molecular formula, and storage recommendations support use in mass spectrometry and isotope-tracing workflows.
- Deuterium-labeled isotopologue for mass spectrometry and tracer studies.
- High purity suitable for analytical standards and reference use.
- Supplied as a powder with defined storage conditions for stability.
- Molecular formula C24H36D4O3 and molecular weight 380.60 aid analytical calculations.
- Provided in small milligram quantities for analytical workflows.
Medchemexpress LLC Ercalcidiol-d3 | 1217467-39-4 | 99.9% | 415.67 | 5 MG
Ercalcidiol-d3 is the deuterium-labeled form of Ercalcidiol, which is a metabolite of Vitamin D2. It can be utilized as an indicator of vitamin D status.
- Use as a tracer.
- Use as an internal standard for quantitative analysis via NMR, GC-MS, or LC-MS.
Medchemexpress LLC Green DND-26 | 220524-71-0 | 99.77% | 362.23 | 50 MG
Green DND-26 is a green fluorescently labeled lysosomal probe with a maximum excitation/emission wavelength of 504/511 nm. Its structure consists of a fluorescein group and linked weak bases, allowing it to freely cross the cell membrane and accumulate in spherical organelles. It is used for observing the internal biosynthesis and related pathogenesis of lysosomes.
- Green fluorescently labeled lysosomal probe.
- Maximum excitation/emission wavelength: 504/511 nm.
- Composed of a fluorescein group and linked weak bases.
- Can freely cross the cell membrane and gather on spherical organelles.
- Suitable for observing internal biosynthesis and related pathogenesis of lysosomes.
Medchemexpress LLC Biotin-PEG6-alcohol | 906099-89-6 | 99.3% | C22H41N3O8S | 100 MG
Biotin-PEG6-alcohol is a biotin-labeled, PEG-based PROTAC linker used in the synthesis of PROTACs. PROTACs are compounds that feature two distinct ligands connected by a linker. One ligand targets an E3 ubiquitin ligase and the other targets a specific protein. This mechanism allows PROTACs to leverage the intracellular ubiquitin-proteasome system for the selective degradation of target proteins. This product is intended for research use only.
- Biotin-labeled and PEG-based PROTAC linker
- Utilized in the synthesis of PROTACs
- Exploits the intracellular ubiquitin-proteasome system
- Enables selective degradation of target proteins
- Intended for research use only
Medchemexpress LLC Mometasone furoate-d3 | 83919-23-7 | 98.8% | 524.45 | 1 MG
Mometasone furoate-d3 is a deuterium labeled Mometasone furoate. Mometasone furoate (Sch32088) acts as a glucocorticoid receptor agonist with anti-inflammatory and anti-allergic properties.
- 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 Sulfo-cyanine5.5 | 210892-23-2 | 99.9% | 10 MG
Cy5.5 (Sulfo-Cyanine5.5) is a near-infrared cyanine fluorescent dye used to label peptides, proteins, antibodies, and oligonucleotides for imaging and biodistribution studies. It is water-soluble, supplied as a purple to purplish-red solid, and exhibits strong absorption and emission in the near-infrared region (Ex 680 nm, Em 710 nm). Conjugation to biomolecules can be achieved using standard reactive derivatives.
- Near-infrared excitation/emission: Ex 680 nm, Em 710 nm.
- Water-soluble cyanine dye suitable for labeling biomolecules.
- Provided as a purple to purplish-red solid.
- Available in multiple pack sizes, including 10 MG and solution in DMSO.
- Storage: protect from light; in solvent: -80°C (up to 2 years), -20°C (up to 1 year).