Isotopically Labeled Compounds
Medchemexpress LLC L-Glutamine-13C5 | 184161-19-1 | MFCD00144603 | 99.9% | 151.11 g/mol | 13C5H10N2O3 | 10 MG
L-Glutamine-13C5 is the 13C-labeled form of the amino acid L-glutamine, supplied as a high-purity solid stable isotope for use as a tracer and quantitative standard in metabolic and mass-spectrometry studies.
- Uniformly labeled with five 13C atoms.
- Purity 99.9% (typical, rounded).
- Molecular weight 151.11 g/mol.
- CAS number 184161-19-1.
- Physical form 10 mg solid powder.
- Storage: powder at -20°C for long-term stability.
Cambridge Isotope Laboratories CYCLOPENTYL BROMIDE-D9 (D, 99%), 1 G, 35468-44-1
CYCLOPENTYL BROMIDE-D9 (D, 99%), 1 G, 35468-44-1
Cambridge Isotope Laboratories STEARIC ACID (17,17,18,18,18-D5, 98%), 0.5 G, 211443-83-3
STEARIC ACID (17,17,18,18,18-D5, 98%), 0.5 G, 211443-83-3
Cambridge Isotope Laboratories DECANOIC ACID (METHYL-D3, 98%), 1 G, 102611-15-4
DECANOIC ACID (METHYL-D3, 98%), 1 G, 102611-15-4
Medchemexpress LLC Bisphenol A-d16 | 96210-87-6 | MFCD29073707 | 100.0% | 244.38 g/mol | C15D16O2 | 10 MG
Bisphenol A-d16 is a deuterium-labeled isotopologue of bisphenol A intended for research and analytical applications. It is used as a stable isotope internal standard and tracer in quantitative mass spectrometry and toxicology studies, providing consistent, traceable results for analytical workflows.
- Deuterium-labeled internal standard for quantitative assays.
- High isotopic enrichment for accurate mass spectrometry measurements.
- High chemical purity suitable for analytical use.
- Supplied in a small vial for trace-level standard preparation.
- Useful for isotope dilution and tracer studies.
Medchemexpress LLC (S)-Indoximod-d3 | 1801851-87-5 | MFCD11983540 | 99.0% | 221.27 g/mol | C12H11D3N2O2 | 10 MG
(S)-Indoximod-d3 is the deuterium-labeled isotopologue of (S)-indoximod (1-methyl-L-tryptophan), supplied as a research reference standard for biochemical and pharmacokinetic studies of the indoleamine-2,3-dioxygenase (IDO) pathway. It is intended for use as an internal standard, tracer, or analytical reference in mass spectrometry and related assays.
- Deuterium-labeled internal standard for quantitative mass spectrometry
- High isotopic and chemical purity (99.0%) suitable for tracer and PK studies
- Compact 10 mg quantity for analytical applications
- Useful in biochemical studies of IDO pathway and immunometabolism
- CAS number provided for unambiguous chemical identification
Medchemexpress LLC Pregn-4-ene-3,20-dione-d9 | 15775-74-3 | MFCD01317491 | 99.7% | 323.52 | C21H21D9O2 | 10 MG
Progesterone-d9 is a deuterium-labeled analogue of the endogenous steroid hormone progesterone, provided as a solid for research use. It is intended for use as a tracer and internal standard in quantitative analytical methods and pharmacokinetic or metabolic studies.
- Deuterium-labeled tracer and internal standard for NMR, GC-MS, and LC-MS.
- Chemical formula C21H21D9O2.
- Molecular weight 323.52 g/mol.
- Supplier-listed purity ~99.7% (verify for critical use).
- Appearance: white to light yellow solid.
- Solubility: DMSO 50 mg/mL; may require sonication and warming.
- Storage: powder at -20°C; in solvent -80°C (6 months) or -20°C (1 month).
- Typical pack size: 10 mg.
Medchemexpress LLC L-methionine-(methyl-13C,d3) | 73488-65-0 | MFCD00002624 | 99.9% | 153.22 g/mol | C4(13C)H8D3NO2S | 10 MG
L-Methionine-13C,d3 is a stable-isotope labeled analogue of the essential amino acid L-methionine, containing one 13C and three deuterium atoms and supplied as a research standard for analytical and metabolic studies. The material is reported at high purity and is suitable as an internal standard or tracer in mass spectrometry and metabolomics workflows.
- Stable-isotope labeled internal standard for mass spectrometry.
- Suitable for tracer, metabolic, and analytical applications.
- High reported purity (99.9%).
- Supplied in small, convenient quantities for analytical use (10 mg).
- Stock and solution storage guidance available for long-term stability.
Medchemexpress LLC Stearic acid-d7 | 951209-59-9 | 98.0% | 5 MG
Stearic acid-d7 is the deuterium labeled Stearic acid. Stearic acid is a long chain dietary saturated fatty acid which exists in many animal and vegetable fats and oils.
- 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 have been incorporated into drug molecules, largely as tracers for quantitation during the drug development process.
- Deuteration has potential to affect the pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC α-D-Xylose | 6763-34-4 | 150.13 | 1 KG
α-D-Xylose is a basic component of the five-carbon fraction of biomass and a precursor of hemicellulose. It participates in various enzyme-catalyzed reactions and metabolic pathways. It is also used in tanning, dyeing, and as a diabetic food. The product appears as a white to off-white solid and is for research use only.
- Basic component of the five-carbon fraction of biomass
- Precursor of hemicellulose
- Participates in various enzyme-catalyzed reactions and metabolic pathways
- Used in tanning, dyeing, and as a diabetic food
- White to off-white solid appearance
- Intended for research use only
Medchemexpress LLC α-D-Xylose | 6763-34-4 | 150.13 | 500 G
α-D-Xylose, also known as α-D-Xylopyranose, is an endogenous metabolite and a basic component of the five-carbon fraction of biomass. It acts as a precursor of hemicellulose and participates in various enzyme-catalyzed reactions within metabolic pathways. This compound is also utilized in industries such as tanning and dyeing, and it finds application as a diabetic food.
- Basic component of biomass five-carbon fraction
- Precursor of hemicellulose
- Participates in enzyme-catalyzed reactions and metabolic pathways
- Used in tanning, dyeing, and as a diabetic food
- Appears as a solid, white to off-white substance
- Functions as an endogenous metabolite
Medchemexpress LLC Perindopril-d4 | 1356929-58-2 | 99.3% | C19H28D4N2O5 | 1 MG
Perindopril-d4 is a deuterium-labeled version of Perindopril, an angiotensin-converting enzyme (ACE) inhibitor. Deuterium-labeled compounds are used in research as tracers for quantitation during drug development due to their potential to influence the pharmacokinetic and metabolic profiles of drugs. This stable isotope is suitable for research applications.
- Stable isotope-labeled compound
- Can be used as a tracer
- Suitable as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Medchemexpress LLC Hexadecanoic-12-d acid | 358730-99-1 | 99.9% | 257.43 | C16H31DO2 | 10 MG
Palmitic acid-d1 is a deuterium-labeled palmitic acid supplied as a high-purity stable-isotope standard for metabolic and lipidomics research. It is provided as a solid for preparing standard solutions and for use as an internal standard in mass spectrometry and quantitative assays.
- Deuterium-labeled (d1) palmitic acid for isotope tracing and internal standard use.
- High purity (99.90%) minimizes isotopic interference.
- Molecular formula C16H31DO2 and molecular weight 257.43 g/mol.
- Available in small research sizes suitable for method development and quantitation.
- Supplied with certificate of analysis and safety data sheet for quality and handling information.