Isotopically Labeled Compounds
Cambridge Isotope Laboratories p-n-Nonylphenoxyethoxyacetic acid (unlabeled) 100 ug/mL in methanol 1 2 mL
p-n-Nonylphenoxyethoxyacetic acid (unlabeled) 100 ug/mL in methanol 1 2 mL
Medchemexpress LLC Istradefylline-13C,d3 | 2749234-46-4 | 98.3% | 388.44 g/mol | C1913CH21D3N4O4 | 5 MG
Istradefylline-13C,d3 is a 13C- and deuterium-labeled analog of istradefylline intended for use as a stable isotope internal standard in quantitative mass spectrometry and analytical workflows. It is supplied as a light-yellow solid with high reported chemical purity and packaged in small, laboratory-scale amounts for precision use.
- Stable isotope-labeled internal standard for LC-MS/GC-MS quantification.
- High chemical purity suitable for analytical applications.
- Labeled with 13C and deuterium for clear mass separation from analyte.
- Supplied as a solid for easy handling and storage.
- Available in small, precise quantities for method development and validation.
Medchemexpress LLC Adipic acid-d10 | 25373-21-1 | MFCD00190459 | 99.9% | 156.20 g·mol⁻¹ | C6D10O4 | 100 MG
Adipic acid-d10 is the deuterium-labeled analogue of adipic acid (C6D10O4, MW 156.20 g·mol⁻¹; CAS 25373-21-1) formulated for use as a tracer and internal standard in quantitative analytical workflows. It provides consistent isotopic enrichment and high chemical purity to support accurate identification and reliable quantitation in NMR, GC-MS, and LC-MS applications.
- High chemical purity suitable for analytical applications.
- Consistent isotopic labeling for reliable internal standard performance.
- Compatible with NMR, GC-MS, and LC-MS workflows.
- Available in small package sizes for laboratory use.
- Facilitates accurate quantitation and peak identification.
- Stable under typical storage conditions for labeled standards.
Cambridge Isotope Laboratories DIMETHYL-D6-AMINE:HCL (D, 98%), 5 G, 53170-19-7
DIMETHYL-D6-AMINE:HCL (D, 98%), 5 G, 53170-19-7
Cambridge Isotope Laboratories Benzyl butyl phthalate (ring-D4 98%) 0 1 g
Benzyl butyl phthalate (ring-D4 98%) 0 1 g
Medchemexpress LLC Cetirizine-d8 | 774596-22-4 | MFCD09840216 | 96.5% | 396.94 g/mol | C21H17D8ClN2O3 | 10 MG
Cetirizine-d8 is a deuterium-labeled analogue of cetirizine, a second-generation antihistamine. This isotopically labeled standard is supplied as a high-purity material for use in analytical applications, pharmacokinetic and metabolic studies, and other research workflows that require precise mass spectrometric quantitation.
- High-purity deuterated reference material for analytical assays.
- Suitable for LC-MS/MS internal standardization and method validation.
- Facilitates accurate pharmacokinetic and metabolic studies.
- Available as powder and in solvent for flexible preparation.
- Provided in small stock sizes suitable for low-volume analytical work.
Medchemexpress LLC DEHP-d4 (Bis(2-ethylhexyl) phthalate-d4) | 93951-87-2 | MFCD00143759 | 99.9% | 1 ML
DEHP-d4 is a deuterium-labeled variant of Bis(2-ethylhexyl) phthalate (DEHP), an endogenous metabolite. This compound is intended for research purposes, specifically as a tracer or an internal standard for quantitative analysis through methods such as NMR, GC-MS, or LC-MS. Deuterium substitution in drug molecules has been noted for its potential to alter pharmacokinetic and metabolic profiles.
Features and Benefits:
- Used as a tracer.
- Serves as an internal standard for quantitative analysis.
- Applicable in NMR, GC-MS, or LC-MS analysis.
- Deuterium labeling can impact pharmacokinetic and metabolic profiles.
- High purity of 99.9%.
Medchemexpress LLC Salcaprozate-d4 sodium | 203787-91-1 | 99.7% | 305.34 | 2 MG
Salcaprozate-d4 (sodium) is a deuterated labeled Salcaprozate (sodium). Salcaprozate sodium (SNAC) is an oral absorption promoter and has potential as a delivery agent for oral forms of heparin and insulin. It can increase passive transcellular permeation across small intestinal epithelia due to increased lipophilicity arising from non-covalent macromolecule complexation.
- Used as a tracer.
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Shows no toxicity to Caco-2 cells at certain concentrations.
- Improves apparent permeability coefficient of RA and SA-B.
- Improves oral absorption of R1 and SAs and enhances bioavailability in rats.
Medchemexpress LLC D-Fructose-d4 | 478518-49-9 | 1 MG
D-Fructose-d4 is the deuterium-labeled form of D-Fructose, a naturally occurring monosaccharide found in many plants.
- 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-Arginine-15N2 hydrochloride | 204633-92-1 | 212.65 | 5 MG
L-Arginine-15N2 (hydrochloride) is the 15N-labeled L-Arginine (hydrochloride). L-Arginine hydrochloride ((S)-(+)-Arginine hydrochloride) serves as the nitrogen donor for the synthesis of nitric oxide, which is a potent vasodilator that is deficient during sickle cell crises.
- 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 Phenindione-d5 | 70711-53-4 | 99.5% | 5 MG
Phenindione-d5 is deuterium labeled Phenindione, which is an anticoagulant that functions as a Vitamin K antagonist.
- 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.
Medchemexpress LLC Guanidine-d5 hydrochloride | 108694-93-5 | 98% | 250 MG
Guanidine-d5 hydrochloride is the deuterium labeled Guanidine hydrochloride, a strong chaotrope and denaturant of proteins. Deuteration can affect 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
Medchemexpress LLC Lactic acid-d3 sodium | 1219802-24-0 | 98% | 5 MG
Lactic acid-d3 sodium is the deuterium labeled form of Lactic acid sodium, an HCAR1 activator and epigenetic modulator. It plays a role as a glycolysis end-product, bridging glycolysis and oxidative phosphorylation. This compound is also recognized as an oncometabolite with an immune protective role in anti-tumor immunity and possesses antimicrobial activity, making it suitable as a food preservative.
- 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 Mephenytoin-d5 | 1185032-66-9 | 98.7% | 5 MG
Mephenytoin-d5 is a deuterium-labeled version of Mephenytoin. Mephenytoin is an anticonvulsant and acts as a substrate for CYP2C19 and CYP2B6. This compound is intended for research use only.
- This compound can be used as a tracer.
- It 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 are incorporated into drug molecules for quantitation during the drug development process.
- Deuteration can impact the pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC 5'-Guanylic acid-15N5 dilithium | 85-32-5 | 1 MG
5'-Guanylic acid-15N5 dilithium is a 15N labeled 5'-Guanylic acid. It is involved in several metabolic disorders, such as the AICA-ribosiduria pathway, adenosine deaminase deficiency, adenine phosphoribosyltransferase deficiency (APRT), and the 2-hydroxyglutric aciduria pathway. 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
- Stable heavy isotopes for quantitation during drug development