Josamycin Impurity 9 CAS 209549-21-3
| CAS No. | 209549-21-3 |
| Molecular Formula | C46H75NO16 |
| Molecular Weight | 898.08 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Josamycin Impurity 9 (CAS 209549-21-3), a pharmacopoeial impurity reference standard (molecular formula C46H75NO16, MW 898.08 g/mol) used for the identification and quantification of trace impurities in APIs.
Josamycin Impurity 9 (C46H75NO16) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Josamycin Impurity 9 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 | C46H75NO16 |
| Molecular Weight | 898.08 g/mol |
| Purity | >95% |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2016 |
| Nitrogen Atoms | 1 |
Related Josamycin Standards
- Josamycin Propionate - API Standards (CAS 40922-77-8)
- Josamycin Impurity 11 (CAS 31674-19-8)
- Josamycin Impurity 6 (CAS CATO-C4X-30156)
- Josamycin Impurity 10 (CAS CATO-C4X-301510)
- Josamycin EP Impurity J (CAS CATO-C4X-301512)
- Josamycin EP Impurity E (Platenomycin A1) (CAS 40615-47-2)
- Josamycin Impurity 7 (CAS CATO-C4X-30157)
- Josamycin EP Impurity B (18-Dihydroleucomycin A3) (CAS 40361-41-9)
Recommended Standards
- Bz-Arg-Gly-Phe-Phe-Leu-4MβNA (CAS 99112-24-0)
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- Midecamycin Impurity 16 (CAS CATO-C4X-312216)
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- 8-Bromo-6-chloro-2H-benzo[d][1,3]oxazine-2,4(1H)-dione (CAS 122588-67-4)
- 2-((4'-Methyl-[1,1'-biphenyl]-4-yl)oxy)-1-morpholinoethan-1-one (CAS 303031-97-2)
- 4-(Piperazin-1-yl)indolin-2-one (CAS 221194-34-9)
- 3-(4-Fluoro-3-methylphenyl)-3-hydroxypropanenitrile (CAS 1504282-14-7)
- 2-(4-Methyl-6-morpholinopyridin-3-yl)piperidine-1-carbaldehyde (CAS 1352522-30-5)
- D-Ser39-Tirzepatide (CAS CATO-CPTD788694)
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