Isotopically Labeled Compounds
Medchemexpress LLC Veratrole-d6 | 24658-24-0 | 50 MG
Veratrole-d6 is a deuterium-labeled Veratrole (1,2-Dimethoxybenzene), a key compound found in plants that attracts pollinators. Its release shows a circadian rhythm, playing a vital role in plant reproduction, species differentiation, and interactions with pollinators. This compound can also be demethylated by cytochrome P-450 in *Streptomyces setonii*.
- Stable heavy isotopes are incorporated into drug molecules for quantitation.
- Deuteration can affect the pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC Glycine-2-13C,15N | 91795-59-4 | MFCD00064424 | 98.0% | 77.05 | C13CH515NO2 | 500mg
Glycine-2-13C 15N is the 13C- and 15N-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 Sodium (S)-2-hydroxypropanoate-d3 | 285979-84-2 | MFCD00084178 | 98.3% | 115.08 g/mol | C3H2D3NaO3 | 5 MG
L-Lactic acid-d3 sodium is the deuterium-labeled sodium salt of L-lactic acid (sodium (S)-2-hydroxypropanoate-d3) supplied for research use as an isotopically labeled standard or tracer. It is provided as a solid with high labeled purity and is intended for analytical and metabolic studies.
- Isotopically labeled (d3) sodium salt.
- High purity suitable for research (98.3%).
- Molecular weight 115.08 g/mol.
- Chemical formula C3H2D3NaO3 and CAS 285979-84-2.
- Supplied in small, accurately measured quantities for analytical use.
- Store sealed at 4°C and protect from moisture; in solvent store at -80°C for long-term stability.
Cambridge Isotope Laboratories GLUTARIC ACID (2,2,4,4-D4, 98%), 5 G, 19136-99-3
GLUTARIC ACID (2,2,4,4-D4, 98%), 5 G, 19136-99-3
Medchemexpress LLC Cetrimonium-d9 bromide | 95217-14-4 | 50 MG
Cetrimonium-d9 (bromide) is the deuterium-labeled Cetrimonium bromide. Cetrimonium bromide (CTAB) is an amine-based cationic quaternary surfactant, and a component of the topical antiseptic Cetrimide. Deuteration has gained attention due to its potential to 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.
Cambridge Isotope Laboratories 4-PREGNEN-21-OL-3,20-DIONE (2,3,4-13C3, 99%) 100 UG/ML IN METHANOL, 1 ML
4-PREGNEN-21-OL-3,20-DIONE (2,3,4-13C3, 99%) 100 UG/ML IN METHANOL, 1 ML
Medchemexpress LLC (2S,4R)-4-hydroxypyrrolidine-2-carboxylic-2,4,5,5-d4 acid | 2734920-51-3 | 99.9% | 135.15 | C5H5D4NO3 | 1 MG
Deuterium-labeled L-hydroxyproline used as a chiral building block and as an analytical internal standard for quantitative methods. Supplied as a white to off-white solid with high isotopic enrichment and high chemical purity, the compound is intended for research and analytical applications where labeled internal standards are required.
- Deuterium labeled at positions 2, 4, 5, and 5.
- High purity (99.9% HPLC) and high isotopic enrichment.
- Suitable as tracer and internal standard for NMR, GC-MS, and LC-MS quantitative analysis.
- White to off-white solid; stable when stored as powder at -20 °C or in solution at -80 °C.
- Available in small mg quantities (1 MG, 5 MG, 10 MG) for analytical use.
Cayman Chemical DImetrIdazole-d3 500ug
An internal standard for the quantification of dimetridazole by GC- or LC-MS
Medchemexpress LLC Octanedioic acid-d12 | 169397-99-3 | 98.6% | 186.27 | C8H2D12O4 | 5 MG
Suberic acid-d12 (octanedioic acid-d12) is the deuterium-labeled form of suberic acid (CAS 169397-99-3) supplied as a white to off-white solid for laboratory research. It is intended for use as an isotopically labeled standard or tracer in analytical, metabolic, and mass spectrometry applications and is provided with a certificate of analysis confirming purity and characterization.
- Deuterium-labeled octanedioic acid suitable for tracer and internal standard use.
- CAS 169397-99-3.
- Chemical formula C8H2D12O4; molecular weight 186.27.
- Purity 98.6% as supplied.
- White to off-white solid appearance.
- Supplied in small research pack sizes suitable for analytical applications.
- Intended for research use only, not for human or clinical use.
Cambridge Isotope Laboratories ACETIC ACID (1,2-13C2, 99%), 1 G, 16651-47-1
ACETIC ACID (1,2-13C2, 99%), 1 G, 16651-47-1
Cayman Chemical Moxifloxacin-d4 hydrochlorid
An internal standard for the quantification of moxifloxacin by GC- or LC-MS
Medchemexpress LLC Barnidipine-d5 5mg | 2771469-19-1 | 5MG
Barnidipine-d5 is the deuterium-labeled Barnidipine (HY-107322A) Barnidipine-d5 (Mepirodipine) is an L-type calcium antagonist (CaA) with high affinity for [3H initrendipine binding sites (Ki 0 21 nmol/l) has selective action against CaA receptors[1 Barnidipine-d5 (Mepirodipine) is an antihypertensive agent and acts by the reduction of peripheral vascular resistance secondary to its vasodilatory action[2
Cambridge Isotope Laboratories 3-(TRIMETHYLSILYL)PROPIONIC ACID (2,2,3,3-D4, CARBOXYL-D, 98%), 1 G
3-(TRIMETHYLSILYL)PROPIONIC ACID (2,2,3,3-D4, CARBOXYL-D, 98%), 1 G
Medchemexpress LLC Sitagliptin-d4 phosphate | 1432063-88-1 | 99.5% | C16H14D4F6N5O5P | 10MG
Sitagliptin-d4 phosphate is the deuterium-labeled isotopologue of sitagliptin phosphate provided as an analytical reference standard. It is used as a labeled internal standard in LC-MS and other bioanalytical assays to enable accurate quantification of sitagliptin and to support studies of DPP-4 inhibition.
- Deuterium-labeled internal standard for accurate quantification.
- High purity (≈99.5%) suitable for analytical use.
- Provides clear isotopic distinction in mass spectrometry assays.
- Stable when stored at 4°C; in solvent store at -80°C (6 months) or -20°C (1 month).
- Supplied in small pack sizes convenient for laboratory use.
Medchemexpress LLC N,N-dimethyl-4-(phenyldiazenyl)aniline-d5 | 1398109-08-4 | MFCD22565739 | 99.0% | 230.32 | C14H10D5N3 | 5 MG
Methyl yellow-d5 is the deuterium-labeled analogue of methyl yellow (Solvent Yellow 2), provided as a stable isotope standard for analytical and tracer applications. It is supplied as a high-purity solid reference material suitable for use as an internal standard in mass spectrometry and method development.
- High isotopic purity suitable for internal standard use.
- Compatible with mass spectrometry and liquid chromatography methods.
- Supplied as a stable, solid isotope-labeled standard for analytical workflows.
- Available in small milligram pack sizes for reference and validation.
- Documentation available includes certificate of analysis and safety data sheet for traceability.