Isotopically Labeled Compounds
Cambridge Isotope Laboratories DL-COTININE (METHYL-D3, 98%), 0.5 G, 110952-70-0
DL-COTININE (METHYL-D3, 98%), 0.5 G, 110952-70-0
Medchemexpress LLC Pseudooxynicotine-d4 hydrochloride | 764661-23-6 | MFCD12031608 | 99.0% | 255.18 | C10H12D4Cl2N2O | 5 MG
Pseudooxynicotine-d4 hydrochloride is the deuterium-labeled (d4) analogue of pseudooxynicotine supplied as the hydrochloride salt. It is intended for use as an isotopically labeled reference or internal standard in analytical and mass spectrometry applications. The product is supplied as a powdered material in small milligram pack sizes.
- Deuterium-labeled internal standard for MS quantitation.
- Hydrochloride salt for improved stability and handling.
- High purity: 99.0%.
- Molecular weight 255.18 g/mol; chemical formula C10H12D4Cl2N2O.
- Available in small pack sizes suitable for trace analysis.
- Store sealed at 4°C; in solvent store at -80°C (6 months) or -20°C (1 month).
Cambridge Isotope Laboratories 4% Methanol 96% methanol-D4 1 5mm tube
4% Methanol 96% methanol-D4 1 5mm tube
Cambridge Isotope Laboratories Bensulide (isopropoxy-D14 98%) 100 ug/mL in acetonitrile 1 2 mL
Bensulide (isopropoxy-D14 98%) 100 ug/mL in acetonitrile 1 2 mL
Cambridge Isotope Laboratories Alpha-Ketoglutaric acid (13C5 99%) CP 90% 0 01 g
Alpha-Ketoglutaric acid (13C5 99%) CP 90% 0 01 g
Cambridge Isotope Laboratories Sodium DL-3-hydroxybutyrate (3 4 4 4-D4 98%) 1 mg/mL in water CP 95% 1 mL
Sodium DL-3-hydroxybutyrate (3 4 4 4-D4 98%) 1 mg/mL in water CP 95% 1 mL
Cayman Chemical ProstaglndIn A2-d4 500ug
An internal standard for the quantification of PGA2 by GC- or LC-MS.
Medchemexpress LLC Uridine-d2-1 | 40632-21-1 | 98.5% | 1 MG
Uridine-d2-1 is the deuterium labeled Uridine. This compound can be used as a tracer and as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS. Deuteration has gained attention because of its potential to affect the pharmacokinetic and metabolic profiles of drugs.
- Deuterium labeled uridine.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Deuteration has potential to affect pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC L-homocysteine-d4 | 331665-12-4 | 94.9% | 139.21 | C4H5D4NO2S | 500 UG
L-Homocysteine-d4 is a deuterium-labeled analogue of the amino acid L-homocysteine, supplied as an isotopic reference material for analytical and research applications. It is intended for use as an internal standard, tracer, or reference in quantitative assays that require a stable isotope-labeled compound. Follow the supplier COA and SDS for purity, handling, and storage recommendations.
- Deuterium-labeled L-homocysteine for isotope-dilution assays.
- Suitable as an internal standard for LC-MS/MS and GC-MS quantitation.
- High purity suitable for analytical use (verify COA for batch-specific value).
- Molecular weight approximately 139.21 and formula C4H5D4NO2S.
- Provided in small-quantity solid format for trace-level standards.
Medchemexpress LLC Diphenylsulfane-d1 | 180802-01-1 | 99.5% | 187.28 g/mol | C12H9DS | 5 MG
Diphenylsulfane-d1 is the deuterium-labeled analogue of diphenylsulfane (diphenyl sulfide), supplied in small research quantities as an isotopically labeled reference or tracer for analytical, mechanistic, and mass spectrometry applications.
- Deuterium-labeled at one position (d1) for isotopic tracing.
- High chemical purity suitable for use as an analytical standard.
- Provided in small-quantity packaging tailored for research use.
- Suitable as an internal standard in mass spectrometry and quantitative analysis.
- Chemical identity corresponds to formula C12H9DS and molar mass ~187.28 g/mol.
Cambridge Isotope Laboratories DODECYLAMINE (15N, 98%+), 1 G, 204451-52-5
DODECYLAMINE (15N, 98%+), 1 G, 204451-52-5