Drug Standards
Medchemexpress LLC Ciprofloxacin-d8 hydrochloride | 1216659-54-9 | MFCD08705188 | 99.0% | 10 MG
Ciprofloxacin-d8 hydrochloride is the deuterium-labeled form of the fluoroquinolone antibiotic ciprofloxacin, supplied as the hydrochloride salt for research use. It is intended primarily as an internal standard or tracer for analytical chemistry, pharmacokinetic studies, and mass spectrometry workflows where isotopic labeling improves detection and quantitation.
- Deuterated internal standard for LC-MS/MS assays.
- Hydrochloride salt supplied for analytical use.
- High isotopic and chemical purity for accurate quantitation.
- Provided in small mg-scale quantities for method development and validation.
- For research use only; not for human or veterinary use.
Medchemexpress LLC Metoprolol impurity 1g
Metoprolol impurity 42 is an impurity of Metoprolol (HY-17503)
Medchemexpress LLC N-acetyl mesalazine | 51-59-2 | MFCD00463101 | 99.9% | 195.17 | C9H9NO4 | 10 MG
N-acetyl mesalazine (N-acetyl-5-aminosalicylic acid) is the primary intestinal metabolite of 5-aminosalicylic acid supplied as an analytical standard for laboratory research. It is used in metabolic, pharmacokinetic, and analytical method development studies, and is intended for research use only.
- Analytical standard for research use only.
- High purity: 99.9%.
- Available as solid milligram quantities and 10 mM DMSO solutions.
- Useful in metabolic and pharmacokinetic studies of 5-ASA.
- Documented chemical identifiers and safety data available.
[C@H](O)[C@H](O)CO[C@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O | 5g | 436018...](https://assets.fishersci.com/TFS-Assets/CCG/product-images/NC3966772.jpg-250.jpg)
eMolecules 64519-82-0 | (3R,4R,5R)-6-(((2S,3R,4S,5S,6R)-3,4,5-Trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)hexane-1,2,3,4,5-pentaol | AA Blocks LLC | MFCD29923417 | 344.313 | C12H24O11 | 0.000 | OCC(O)[C@@H](O)[C@H](O)[C@H](O)CO[C@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O | 5g | 436018...
(3R,4R,5R)-6-(((2S,3R,4S,5S,6R)-3,4,5-Trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)hexane-1,2,3,4,5-pentaol | AA Blocks LLC | 64519-82-0 | MFCD29923417 | 344.313 | C12H24O11 | 0.000 | OCC(O)[C@@H](O)[C@H](O)[C@H](O)CO[C@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O | 5g | 436018690
Medchemexpress LLC Betahistine-d3 dihydrochloride | 244094-72-2 | 99.0% | 212.13 | C8H11D3Cl2N2 | 10 MG
Betahistine-d3 dihydrochloride is a deuterium-labeled form of betahistine supplied for research and analytical applications as a stable isotope reference standard. It is intended for use as a tracer or internal standard in mass spectrometry and pharmacokinetic studies.
- Deuterium-labeled betahistine for use as a stable isotope standard.
- High purity suitable for analytical applications (reported purity 99.0%).
- Supplied as the dihydrochloride salt with CAS 244094-72-2.
- Molecular weight 212.13 and molecular formula C8H11D3Cl2N2.
- Available in small research pack sizes suitable for trace analysis.
Medchemexpress LLC Ticagrelor impurity 10 | 98.5% | 562.63 g·mol⁻¹ | C26H32F2N6O4S | 10 MG
Ticagrelor impurity 10 is a research-grade impurity of the antiplatelet agent ticagrelor, supplied for analytical reference, impurity profiling, and method development. The material is provided at high stated purity (98.51%) and is characterized by a molecular weight of 562.63 g·mol⁻¹. Small-mass packages are offered for laboratory use, and accompanying documentation (SDS, COA) is available.
- Research-grade impurity for analytical and QC applications.
- High stated purity (98.51%) for reliable reference standards.
- Available in small milligram quantities suitable for method development.
- Characterized molecular weight for analytical confirmation.
- SDS and COA available to support safe handling and verification.
![eMolecules 2086-83-1 | Berberine | Aladdin Scientific Corporation | MFCD01175817 | 336.366 | C20H18NO4 | 99.000 | COc1ccc2cc3-c4cc5OCOc5cc4CC[n+]3cc2c1OC | 250mg | 845194671](https://assets.fishersci.com/TFS-Assets/CCG/product-images/NC3966514.jpg-250.jpg)
eMolecules 2086-83-1 | Berberine | Aladdin Scientific Corporation | MFCD01175817 | 336.366 | C20H18NO4 | 99.000 | COc1ccc2cc3-c4cc5OCOc5cc4CC[n+]3cc2c1OC | 250mg | 845194671
Berberine | Aladdin Scientific Corporation | 2086-83-1 | MFCD01175817 | 336.366 | C20H18NO4 | 99.000 | COc1ccc2cc3-c4cc5OCOc5cc4CC[n+]3cc2c1OC | 250mg | 845194671
![eMolecules 34642-77-8 | Na-6-[D-a-Amino-p-hydroxyphenylacetamido]penicillanic acid | AA Blocks LLC | MFCD29050354 | 387.390 | C16H18N3NaO5S | 0.000 | [Na+].CC1(C)S[C@@H]2[C@H](NC(=O)C(N)c3ccc(O)cc3)C(=O)N2[C@H]1C([O-])=O | 1g | 436017942](https://assets.fishersci.com/TFS-Assets/CCG/product-images/NC3966500.jpg-250.jpg)
eMolecules 34642-77-8 | Na-6-[D-a-Amino-p-hydroxyphenylacetamido]penicillanic acid | AA Blocks LLC | MFCD29050354 | 387.390 | C16H18N3NaO5S | 0.000 | [Na+].CC1(C)S[C@@H]2[C@H](NC(=O)C(N)c3ccc(O)cc3)C(=O)N2[C@H]1C([O-])=O | 1g | 436017942
Na-6-[D-a-Amino-p-hydroxyphenylacetamido]penicillanic acid | AA Blocks LLC | 34642-77-8 | MFCD29050354 | 387.390 | C16H18N3NaO5S | 0.000 | [Na+].CC1(C)S[C@@H]2[C@H](NC(=O)C(N)c3ccc(O)cc3)C(=O)N2[C@H]1C([O-])=O | 1g | 436017942
Medchemexpress LLC Ramelteon impurity 10 | 196597-17-8 | 98.7% | 259.35 | C16H21NO2 | 10 MG
Ramelteon impurity 10 is an analytical reference impurity of ramelteon used for impurity profiling, method development, and quality control. Supplied for research use only with an accompanying certificate of analysis and safety data sheet; the COA reports purity by HPLC at 98.66%.
- Analytical reference for impurity profiling
- Suitable for HPLC and LC-MS method development
- CAS number 196597-17-8
- Molecular formula C16H21NO2
- Molecular weight 259.35 g/mol
- Certified purity 98.66% by HPLC (COA provided)
- Intended for research use only; not for human use
Medchemexpress LLC Osimertinib dimesylate | 2070014-82-1 | 99.2% | 10 MG
Osimertinib dimesylate is an irreversible, mutant-selective epidermal growth factor receptor (EGFR) inhibitor supplied as a solid research standard for in vitro and analytical applications. It demonstrates potent activity against activating and resistance EGFR mutants, with reported IC50 values of 12 nM (EGFR L858R) and 1 nM (EGFR L858R/T790M).
- Irreversible, mutant-selective EGFR inhibitor for research and analytical use.
- Demonstrated potency: IC50 12 nM (EGFR L858R) and 1 nM (EGFR L858R/T790M).
- High purity (99.19%) suitable for biochemical assays and analytical standards.
- Solid powder form, available in small mass sizes such as 10 mg.
- Chemical formula C30H41N7O8S2; molecular weight 691.82 g/mol.
- Storage: store sealed away from moisture; in solvent -80°C (6 months) or -20°C (1 month).
Medchemexpress LLC Bedaquinoline impurity 1 | 1972612-60-4 | 98.6% | 555.50 | 5 MG
Bedaquinoline impurity 1 is an impurity of Bedaquinoline, intended for research use only. This product is not sold to patients.
- For research use only
- Available with high purity
Medchemexpress LLC Cefditoren sodium | 104146-53-4 | MFCD01750404 | 95.6% | 528.56 g·mol⁻¹ | C19H17N6NaO5S3 | 10 MG
Cefditoren sodium is the sodium salt of cefditoren, a third-generation oral cephalosporin antibiotic. Supplied as a research-grade solid, it is intended for use as a reference compound in antibacterial and beta-lactamase research, in vitro susceptibility testing, and mechanism-of-action studies. Supplier documentation provides purity and storage guidance for experimental use.
- Third-generation oral cephalosporin antibacterial agent.
- Suitable as a research standard for antimicrobial and beta-lactamase studies.
- Solid form, intended for analytical and in vitro applications.
- Documented CAS number and molecular formula for precise identification.
- Supplier datasheet provides purity, handling, and storage recommendations.
U.S. Pharmacopeia Mesalamine, 89-57-6, MFCD00007877, 200 mg
Linear Formula: H2NC6H3-2-(OH)CO2H, Molecular Weight: 153.14, mp: 275-280 °C, Synonym: 5-Amino-2-hydroxybenzoic acid, 5-AS, 5-Aminosalicylic acid, Mesalamine.
