Amphotericin B ChP Impurity D((13S)-13-O-Methylamphotericin) CAS 944242-31-3
| CAS No. | 944242-31-3 |
| Molecular Formula | C48H75NO17 |
| Molecular Weight | 938.11 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO supplies Amphotericin B ChP Impurity D((13S)-13-O-Methylamphotericin) (CAS 944242-31-3), a pharmacopoeial impurity reference standard (molecular formula C48H75NO17, MW 938.11 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C48H75NO17, Amphotericin B ChP Impurity D((13S)-13-O-Methylamphotericin) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 938.11 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Amphotericin B ChP Impurity D((13S)-13-O-Methylamphotericin) under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C48H75NO17 |
| Molecular Weight | 938.11 g/mol |
| Purity | >80% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
Related Amphotericin Standards
- Amphotericin B Impurity 1(Amphotericin B Methyl Ester) (CAS 36148-89-7)
- Amphotericin B Impurity 25 (CAS CATO-C4X-184425)
- Amphotericin B Impurity 26 (CAS CATO-C4X-184426)
- Amphotericin B EP Impurity B (CAS 136135-57-4)
- Amphotericin B Impurity 21 (CAS CATO-C4X-184421)
- Amphotericin Methyl Ester-d3 (CAS CATO-CCAD303860)
- Amphotericin Impurity 9 (CAS CATO-C4X-18449)
- Amphotericin B-13C6 (CAS 1397-89-3 (non-labelled))
Recommended Standards
- Ac-YVK(biotinyl)D-2,6-dimethylbenzoyloxymethylketone, Ac-YVK(biotinyl)D-AOM (CAS 154719-25-2)
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- Atosiban Impurity 94 (CAS CATO-C4X-229394)
- Nifuratel Impurity 18 (CAS CATO-C4X-127218)
- LCZ-696 Impurity 58 (CAS 1012341-48-8)
- Biotin Impurity 6 (CAS CATO-C4X-15636)
- 2,2,2-trifluoro-1-(1H-pyrrol-2-yl)ethan-1-amine hydrochloride (CAS 1820747-27-0)
- 2-(2-Butoxyethyl)isoindoline-1,3-dione (CAS 56058-19-6)
- Octadecylthioethyl 4-O-(α-D-galactopyranosyl)-β-D-galactopyranoside (CAS 87019-34-9)
- 1-(5-Bromo-3-methylpyridin-2-yl)ethanone (CAS 1211533-25-3)
- Docetaxel Impurity 88 (CAS CATO-C4X-161988)
- Ethyl 2-((7-chloroquinolin-4-yl)thio)acetate (CAS 1071597-98-2)
- Exenatide (CAS 141758-74-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com