Isotopically Labeled Compounds
Medchemexpress LLC Glycine-d2 | 4896-75-7 | MFCD00075077 | 99.9% | 77.08 | C2H3D2NO2 | 500mg
Glycine-d2 is the deuterium labeled Glycine Glycine is an inhibitory neurotransmitter in the CNS and also acts as a co-agonist along with glutamate facilitating an excitatory potential at the glutaminergic N-methyl-D-aspartic acid (NMDA) receptors
Medchemexpress LLC Isovaleric acid-d2 | 95927-02-9 | 99.49% | 104.14 | 100 MG
Isovaleric acid-d2 is the deuterium labeled Isovaleric acid. Isovaleric acid is a natural fatty acid and known to affect neonatal death and possible Jamaican vomiting sickness in humans. This compound can be used as a tracer and as an internal standard for quantitative analysis by 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 GLYCINE (2-13C, 99%), 1 G, 20220-62-6
GLYCINE (2-13C, 99%), 1 G, 20220-62-6
Medchemexpress LLC Carbendazim-d4 | 291765-95-2 | 99.6% | C9H5D4N3O2 | 10MG
Carbendazim-d4 is the deuterium-labeled analogue of the fungicide carbendazim, supplied as a 10 mg reference standard for analytical and research use. It is intended for use as an isotopically labeled internal standard or tracer in quantitative mass spectrometry and related analytical workflows, offering consistent performance and storage stability under recommended conditions.
- High chemical and isotopic purity.
- Suitable as an internal standard for mass spectrometry.
- Provided as a stable, dry powder for long-term storage.
- Compatible with common organic solvents for sample preparation.
- Characterized molecular weight and formula for analytical identification.
![Revvity Health Sciences Inc Iodo-Melatonin, 2-[<sup>125</sup>I], 100µCi](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502811007.jpg-250.jpg)
Medchemexpress LLC Monohydroxy-3-butenyl mercapturic acid-d6 | >98.0% | 478.64 g/mol | C18H18D12N2O8S2 | 1mg
MHBMA-d6 is the deuterium labeled MHBMA[1]
Medchemexpress LLC Propamocarb-d7 | 1398065-89-8 | 5 MG
Propamocarb-d7 is the deuterium-labeled version of Propamocarb, a systemic fungicide used to protect plants such as cucumbers and tomatoes from pathogens.
- Can be used as a tracer and 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 drug development.
- Deuteration can impact the pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC Amitraz-d3 | 33089-61-1 | 99.5% | 1 MG
Amitraz-d3 is a deuterium-labeled version of Amitraz, a non-systemic acaricide and insecticide. Amitraz functions as an alpha-adrenergic agonist, interacts with octopamine receptors in the central nervous system, and inhibits monoamine oxidases and prostaglandin synthesis. This compound is intended for research purposes.
- 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 are incorporated into drug molecules for quantitation during drug development.
- Deuteration may affect the pharmacokinetic and metabolic profiles of drugs.
Cayman Chemical Salvinorin A-d3, Purity: ≥99% deuterated forms (d1-d3), CAS: 791114-98-2, 1 mg
An internal standard for the quantification of salvinorin A by GC- or LC-MS; intended for research and forensic applications
Medchemexpress LLC Nε-(1-carboxymethyl)-L-lysine-d4 | 936233-18-0 | MFCD04114278 | 99.8% | 208.25 g/mol | C8H12D4N2O4 | 500 UG
CML-d4 is a deuterium-labeled derivative of Fmoc-L-lysine (Boc)-OH used as a stable isotope internal standard and tracer for analytical and metabolic studies. It is supplied as a white to off-white solid with high chemical and isotopic purity, and is intended for quantitative LC-MS, NMR, and related research applications.
- High chemical and isotopic purity suitable for analytical standards.
- Useful as an internal standard for quantitative LC-MS and NMR.
- Supplied as a stable solid with recommended cold storage for long-term stability.
- Analytical data, including certificate of analysis and elemental analysis, available for batches.
Medchemexpress LLC L-Xylose | 609-06-3 | 97.0% | C₅H₁₀O₅ | 10 G
L-Xylose (L-(-)-Xylose) is a rare sugar and the levorotatory form of Xylose. It has a molecular weight of 150.13 and appears as a white to off-white solid. It is soluble in DMSO at 100 mg/mL. This product serves as a raw material for the synthesis of various drugs and bioactive molecules.
- Suitable for use as a raw material in drug synthesis
- Levorotatory form of Xylose
- White to off-white solid appearance
- Soluble in DMSO at 100 mg/mL
Medchemexpress LLC Sulfadoxine-d4 | 1330266-05-1 | 98.0% | 1 MG
Sulfadoxine-d4 is the deuterium labeled Sulfadoxine, a long-acting sulfonamide. It is commonly used in combination with other agents for respiratory, urinary tract, and malarial infections, and has shown to inhibit HIV replication in peripheral blood mononuclear cells.
- Used as a tracer
- Functions as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Cayman Chemical Cholic Acid-d4, Purity: ≥95%, CAS: 116380-66-6, 5 mg
An internal standard for the quantification of cholic acid by GC- or LC-MS
Medchemexpress LLC Sodium propionate-d3 | 1210410-35-7 | 98.4% | 100 MG
Sodium propionate-d3 is the deuterium labeled Propionate sodium (HY-B1773A). Sodium propionate is an orally active short-chain fatty acid produced by intestinal bacteria from the metabolism of dietary fiber. It increases PPAR-γ, inhibits NF-κB activation, reduces COX-2 expression and NO production, and induces Apoptosis and Autophagy. Sodium propionate reduces HSV-1-induced keratitis and has anticancer effects against glioblastoma. It also exhibits neuroprotective, antioxidant, and anti-inflammatory activities, and can be used in the research of spinal cord injury and Alzheimer's disease.
- Can be used as a tracer and as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Stable heavy isotopes incorporated into drug molecules for quantitation during drug development.
- Deuteration may affect pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC Fmoc-Ala-OH-13C3,15N | 865720-15-6 | 99.9% | 315.30 | 5 MG
Fmoc-Ala-OH-13C3,15N is a 15N-labeled and 13C-labeled Fmoc-Ala-OH, which is an alanine derivative. This compound is intended for research use only and can be used as a tracer or an internal standard for quantitative analysis by methods such as NMR, GC-MS, or LC-MS.
- Used as a tracer.
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- 15N-labeled.
- 13C-labeled.
- Alanine derivative.
- For research use only.