Isotopically Labeled Compounds
Medchemexpress LLC 16α-hydroxyestrone | 566-76-7 | MFCD00870436 | 99.7% | 286.37 | C18H22O3 | 5 MG
16α-hydroxyestrone is an endogenous steroid metabolite of estrone supplied as a solid reference standard for analytical and biochemical research. It is intended for use in metabolism studies, biomarker research, and as a well-characterized compound for assay development.
- High purity (99.7%).
- Solid, white to off-white appearance.
- Molecular formula C18H22O3; molecular weight 286.37.
- Soluble in DMSO (≥250 mg/mL).
- Powder storage: -20°C, stable up to 3 years.
- In solvent: -80°C for 6 months or -20°C for 1 month.
Medchemexpress LLC Leukotriene B4-d4 25ug | 124629-74-9 | 25UG
Leukotriene B4-d4 is the deuterium labeled Leukotriene B4 Leukotriene B4 (LTB4) is known as one of the most potent chemoattractants and activators of leukocytes and is involved in inflammatory diseases Leukotriene B4 is also an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1 [2 [3
Medchemexpress LLC Carazolol-d7 | 1173021-02-7 | ≥98.0% | 305.4 | C18H15D7N2O2 | 25 MG
Carazolol-d7 is the deuterium-labeled analog of carazolol used as an internal standard and reference material for analytical and pharmacological research. It supports accurate quantification in mass spectrometry and is commonly used in metabolic and pharmacokinetic studies.
- Deuterium-labeled internal standard for LC-MS and GC-MS.
- High chemical purity ≥98.0%.
- Suitable for pharmacokinetic and metabolic studies.
- Provides reliable quantification and method validation.
- Supplied as a stable solid reference standard.
Medchemexpress LLC Lenvatinib-15N,d4 | 00-00-0 | 98.0% | 431.87 g/mol | C21H15D4ClN315NO4 | 5 MG
Lenvatinib-15N,d4 is an isotopically labeled analogue of lenvatinib intended for use as an internal standard or tracer in analytical and pharmacokinetic studies. The compound contains 15N and four deuterium labels to facilitate sensitive and specific LC-MS/MS quantification while limiting isotopic overlap.
- Isotopically labeled with 15N and four deuteriums for use as an internal standard.
- Formulated for analytical and pharmacokinetic LC-MS/MS applications.
- High purity (98.01%) suitable for quantitative studies.
- Powder form with recommended cold storage for stability.
- Molecular weight 431.87 g/mol and molecular formula C21H15D4ClN315NO4.
Cambridge Isotope Laboratories Quinic acid (1 2-13C2 carboxyl-13C 98%) CP 95% 1 mg
Quinic acid (1 2-13C2 carboxyl-13C 98%) CP 95% 1 mg
Cambridge Isotope Laboratories 2 2 2-Trifluoroethanol-D3 (D 99%) 5 x 1 g
2 2 2-Trifluoroethanol-D3 (D 99%) 5 x 1 g
Cambridge Isotope Laboratories Pyraclonil (propyne-13C3 99%) 100 ug/mL in acetonitrile 1 2 mL
Pyraclonil (propyne-13C3 99%) 100 ug/mL in acetonitrile 1 2 mL
Cambridge Isotope Laboratories Methoxychlor (unlabeled) 100 ug/mL in nonane 1 2 mL
Methoxychlor (unlabeled) 100 ug/mL in nonane 1 2 mL
Cambridge Isotope Laboratories Tetrahydrofuran-D8 100% (D 99 90%) 5 mL
Tetrahydrofuran-D8 100% (D 99 90%) 5 mL
Cambridge Isotope Laboratories Dibenzo-p-dioxin (13C12 99%) 50 ug/mL in nonane 1 2 mL
Dibenzo-p-dioxin (13C12 99%) 50 ug/mL in nonane 1 2 mL
