Post-Transition Metal Salts
Sigma Aldrich Fine Chemicals Biosciences Bismuth(III) carbonate basic puriss., meets analytical specification of Ph. Eur., 80-82.5% Bi basis (calc. on dried substance) | Purity: 80-82.5% Bi basis (calc. on dried substance) | Mol Wt: 509.97 | 5892-10-4 | MFCD00010877 | 100G
Bismuth(III) carbonate basic puriss., meets analytical specification of Ph. Eur., 80-82.5% Bi basis (calc. on dried substance) | Purity: 80-82.5% Bi basis (calc. on dried substance) | Mol Wt: 509.97 | 5892-10-4 | MFCD00010877 | 100G
Medchemexpress LLC Levofloxacin N-oxide | 117678-38-3 | MFCD24386420 | >95.0% | 377.37 | C18H20FN3O5 | 5 MG
Levofloxacin N-oxide is an analytical reference standard of the levofloxacin metabolite intended for research and analytical applications. Supplied as a dried solid in small mass packs, it is used for chromatographic method development, impurity profiling, and quality control in pharmaceutical analysis. The compound has formula C18H20FN3O5 and molecular weight 377.37; storage recommendations include 4°C protected from light and long-term storage in solvent at -80°C.
- Provides reference material for chromatographic method development.
- Suitable for impurity profiling and stability studies.
- Available in small mass packages for analytical use.
- Solid form convenient for handling and storage.
- Storage: 4°C, protect from light; in solvent: -80°C (6 months), -20°C (1 month).
Medchemexpress LLC Roflumilast N-oxide | 292135-78-5 | 99.5% | 419.21 | C17H14Cl2F2N2O4 | 10 MG
Roflumilast N-oxide is the N-oxide metabolite and analytical standard of roflumilast, acting as a phosphodiesterase 4 (PDE4) inhibitor for research and analytical applications, including biochemical assays and pharmacology studies.
- High purity (99.52%).
- Molecular formula C17H14Cl2F2N2O4 and molecular weight 419.21.
- Available as powder and as a 10 mM solution in DMSO.
- Suitable for use as an analytical standard and in in vitro assays.
- Recommended storage: powder at -20°C; in solvent at -80°C for long term.
Medchemexpress LLC Levofloxacin N-oxide | 117678-38-3 | C18H20FN3O5 | 10MG
Levofloxacin N-oxide is an analytical standard representing a minor metabolite of the antibiotic levofloxacin, supplied for research and analytical applications including method development and metabolite profiling.
- Provided as an analytical standard for research and method development.
- Minor metabolite of levofloxacin, useful for metabolite profiling.
- Chemical formula C18H20FN3O5; molecular weight 377.37 g/mol.
- High purity (98.28%) suitable for analytical use.
- Soluble in DMSO at 50 mg/mL; ultrasonic assistance may be required.
- Store at 4°C and protect from light; in solution keep at -80°C up to 6 months or -20°C up to 1 month.
Medchemexpress LLC Lidocaine N-oxide | 2903-45-9 | MFCD22125322 | 99.9% | 250.34 | C14H22N2O2 | 10MG
Lignocaine N-oxide (lidocaine N-oxide) is a drug metabolite used as a reference standard in biochemical and pharmacological research. It is supplied as a powder with characterized solubility and storage recommendations for laboratory use.
- CAS number 2903-45-9 for unambiguous identification.
- Chemical formula C14H22N2O2 and molecular weight 250.34 g/mol.
- Purity 99.9% (reported by supplier) suitable for analytical applications.
- Appearance: powder; solubility: DMSO 100 mg/mL (requires ultrasonic), aqueous formulations achieving ≥5 mg/mL.
- Storage: powder -20°C (3 years) or 4°C (2 years); in solvent -80°C (6 months) or -20°C (1 month).
- Available in mg-scale solid packs and 10 mM solution formats for research use.