Isotopically Labeled Compounds
Cambridge Isotope Laboratories L-TRYPTOPHAN (D8, 98%; 15N2, 98%), 0.25 G
L-TRYPTOPHAN (D8, 98%; 15N2, 98%), 0.25 G
Medchemexpress LLC Ketotifen-d3 fumarate | 1795138-23-6 | 99.2% | 5 MG
Ketotifen-d3 fumarate is a deuterium labeled version of Ketotifen fumarate, a second-generation noncompetitive H1-antihistamine and mast cell stabilizer. It is primarily used for research purposes, including as a tracer and internal standard for quantitative analysis methods like NMR, GC-MS, or LC-MS.
- Deuterium labeled version for research applications
- Functions as a noncompetitive H1-antihistamine
- Acts as a mast cell stabilizer
- Can be used as a tracer
- Serves as an internal standard for quantitative analysis
- Suitable for NMR, GC-MS, or LC-MS applications
Medchemexpress LLC Nortriptyline | 72-69-5 | 99.9% | 263.38 | C19H21N | 5 MG
Nortriptyline is a tricyclic antidepressant used as a research chemical and supplied as a high-purity solid for laboratory applications. It is provided in small pack sizes with defined storage conditions to preserve stability.
- High reported purity (99.9%).
- White to off-white solid, suitable for analytical and biological research.
- Molecular weight 263.38 g/mol; CAS number 72-69-5.
- Available in small research pack sizes, including 5 mg.
- Store at 4°C and protect from light; in solvent, store at -80°C (6 months) or -20°C (1 month).
Medchemexpress LLC L-Hydroxyproline-d3 | 1356016-86-8 | 99.9% | 134.15 | 1 MG
L-Hydroxyproline-d3 is the deuterium labeled L-Hydroxyproline. L-Hydroxyproline, one of the hydroxyproline (Hyp) isomers, is a useful chiral building block in the production of many pharmaceuticals.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
Medchemexpress LLC Erythromycin-d6 | 959119-25-6 | 1 MG
Erythromycin-d6 is the deuterium labeled version of Erythromycin, a macrolide antibiotic produced by the actinomycete Streptomyces erythreus. Known for its broad spectrum of antimicrobial activity, it functions by binding to bacterial 50S ribosomal subunits, inhibiting RNA-dependent protein synthesis. This compound is intended for research use only.
- 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 L-PHENYLALANINE (3-13C, 99%), 0.1 G
L-PHENYLALANINE (3-13C, 99%), 0.1 G
Cambridge Isotope Laboratories L-Glutamic acid (13C5 99% 15N 99%) 0 5 g
L-Glutamic acid (13C5 99% 15N 99%) 0 5 g
Medchemexpress LLC 1,25-dihydroxyvitamin D3-13C3 (calcitriol-13C3) | 32222-06-3 | 97.0% | 413.57 | C24(13C3)H38O3 | 5 UG
Calcitriol-13C3 is a 13C-labeled form of calcitriol (1,25-dihydroxyvitamin D3) provided as a stable-isotope analytical standard for research use. It is intended as a tracer and internal standard for quantitative NMR, GC-MS, and LC-MS methods and is supplied as a small-volume ethanolic solution; protect from light and store under inert atmosphere for recommended shelf life.
Cambridge Isotope Laboratories VITAMIN D2 (ERGOCALCIFEROL) (6,19,19-D3, 97%), 1 MG, 1217448-46-8
VITAMIN D2 (ERGOCALCIFEROL) (6,19,19-D3, 97%), 1 MG, 1217448-46-8