Isotopically Labeled Compounds
Medchemexpress LLC Adenosine-1′-13C | 201996-55-6 | 96.3% | 5 MG
Adenosine-1′-13C is the 13C labeled Adenosine. Adenosine (Adenine riboside) is a ubiquitous endogenous autacoid that acts through four G protein-coupled receptors: A1, A2A, A2B, and A3. It affects almost all aspects of cellular physiology.
- Used as a tracer.
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
Medchemexpress LLC Ipratropium-d3 bromide | 22254-24-6 | 98.0% | 5 MG
Ipratropium-d3 bromide is the deuterium labeled Ipratropium bromide. It is a muscarinic receptor antagonist, with binding IC50 values of 2.9 nM, 2 nM, and 1.7 nM for M1, M2, and M3 receptors, respectively. It can be used in the research for COPD (chronic obstructive pulmonary disease) and asthma, and serves as a tracer or an internal standard for quantitative analysis.
- Deuterium labeled compound
- Acts as a muscarinic receptor antagonist
- Suitable for research on COPD and asthma
- Functions as a tracer
- Useful as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Medchemexpress LLC N,N-dimethyl-4-(phenyldiazenyl)aniline-d5 | 1398109-08-4 | 99.0% | 230.32 g·mol⁻¹ | C14H10D5N3 | 10 MG
Methyl yellow-d5 is the deuterium-labeled analog of methyl yellow intended as a high-purity reference standard for analytical research. It serves as an internal standard or tracer in quantitative workflows and is provided in small, pre-weighed quantities suitable for laboratory use.
- Deuterium-labeled tracer for quantitative analysis.
- Purity 99% for reliable analytical results.
- Compatible with NMR, GC-MS, and LC-MS methods.
- Available in small pre-weighed pack sizes for precision dosing.
- Supplied with datasheet and certificate of analysis for traceability.
Medchemexpress LLC Cholan-24-oic-24-13C acid, 3,7,12-trihydroxy-, (3α,5β,7α,12α)- | 52886-36-9 | 99.2% | 409.56 | C23(13C)H40O5 | 10 MG
Cholic acid-13C is the 13C-stable isotope labeled form of cholic acid, provided as a high-purity analytical standard for metabolic and lipid research. Supplied as a small quantity powder for laboratory use; not for human consumption.
- 13C-stable isotope labeling for use in mass spectrometry and tracer studies.
- High reported purity, suitable for analytical applications.
- Supplied in a 10 mg quantity for standards and small-scale experiments.
- Datasheet, certificate of analysis, and SDS available for quality and safety verification.
- For research use only; not for human or therapeutic use.
Cayman Chemical Sphingosine-13C2-d2 (d18:1), Purity: ≥99% deuterated forms (d1-d2), CAS: 2692623-81-5, 1 mg
An internal standard for the quantification of sphingosine (d18:1) by GC- or LC-MS
Cayman Chemical Tranexamic Acid-13C2,15N, Purity: ≥95%, CAS: 1292837-95-6, 1 mg
An internal standard for the quantification of tranexamic acid by GC- or LC-MS
![Revvity Health Sciences Inc CP 55940, [Side Chain-2,3,4-<sup>3</sup>H(N)]-, 250µCi (9.25MBq)](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502809817.jpg-250.jpg)
Revvity Health Sciences Inc CP 55940, [Side Chain-2,3,4-3H(N)]-, 250µCi (9.25MBq)
CP 55940, [Side Chain-2,3,4-3H(N)]-, 250µCi (9.25MBq)
Cambridge Isotope Laboratories 2-Bromoethanol (1 1 2 2-D4 98%) CP 95% 5 g
2-Bromoethanol (1 1 2 2-D4 98%) CP 95% 5 g
Medchemexpress LLC Dopamine-d3 hydrochloride | 53587-30-7 | 99.9% | 1 MG
Dopamine-d3 (hydrochloride) is the deuterium-labeled form of Dopamine hydrochloride (ASL279). It is used for research purposes and is not sold to patients. This compound is described as a stable heavy isotope that can be incorporated into drug molecules, primarily as a tracer for quantitation during drug development. Deuteration has gained attention due to its potential to influence 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.
- Stable heavy isotope.
Medchemexpress LLC DL-Tryptophan-d3 | 340257-61-6 | 99.3% | 207.24 | 10 MG
DL-Tryptophan-d3 is the deuterium labeled DL-Tryptophan. DL-Tryptophan is an endogenous metabolite. 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 Allocholic acid (2 2 4 4-D4 98%) (CP 95%) 1 mg
Allocholic acid (2 2 4 4-D4 98%) (CP 95%) 1 mg
Cambridge Isotope Laboratories Methyl formate (formyl-D 99%) 10 g
Methyl formate (formyl-D 99%) 10 g
Cambridge Isotope Laboratories Dimethoate (unlabeled) 100 ug/mL in acetonitrile 1 2 mL
Dimethoate (unlabeled) 100 ug/mL in acetonitrile 1 2 mL
Medchemexpress LLC Belotecan-d7 hydrochloride | 1346598-22-8 | 99.9% | 477.00 | C25H21D7ClN3O4 | 5 MG
Belotecan-d7 hydrochloride is a deuterium-labeled analog of belotecan hydrochloride provided as a stable-isotope reference standard for analytical and research applications. It is intended for use as an internal standard in mass spectrometry, ADME, and pharmacokinetic studies to support accurate quantitation and compound identification.
- Deuterium-labeled internal standard for mass spectrometry.
- High purity (99.9%) suitable for analytical workflows.
- Supplied as the hydrochloride salt for improved stability and solubility.
- Molecular weight 477.00 and formula C25H21D7ClN3O4 for precise mass tagging.
- Available in small pack sizes appropriate for analytical use.
Cambridge Isotope Laboratories CHENODEOXYCHOLIC ACID (2,2,3,4,4,6,6,7,8-D9, 98%) 100 UG/ML IN METHANOL, 1 ML
CHENODEOXYCHOLIC ACID (2,2,3,4,4,6,6,7,8-D9, 98%) 100 UG/ML IN METHANOL, 1 ML