Roxithromycin impurity 29 CAS CATO-C4X-130329
| CAS No. | CATO-C4X-130329 |
| Molecular Formula | C8H16O4 |
| Molecular Weight | 176.21 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Roxithromycin impurity 29.
As a process- or degradation-related impurity, Roxithromycin impurity 29 (CAS CATO-C4X-130329, C8H16O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Roxithromycin impurity 29 (C8H16O4) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.
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.
As a certified reference material (CRM), Roxithromycin impurity 29 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C8H16O4 |
| Molecular Weight | 176.21 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 1.0 |
Related Roxithromycin Standards
- Roxithromycin Impurity 15 (CAS 89268-03-1)
- Roxithromycin Impurity 14 (CAS CATO-C4X-130314)
- Roxithromycin Impurity 17 (CAS 74498-88-7)
- Roxithromycin Impurity 18 (CAS 67796-27-4)
- Roxithromycin Impurity A (CAS 59319-72-1)
- Roxithromycin EP Impurity I TFA salt (CAS 425365-66-8(free base))
- Roxithromycin EP Impurity B (CAS 214902-82-6)
- Roxithromycin EP Impurity B Isomer (CAS CATO-C4X-130321)
Recommended Standards
- Agomelatine Impurity 16 (CAS 6836-19-7)
- Timolol Impurity 27 (CAS CATO-C4X-149627)
- Palonosetron Impurity 29 (CAS 85977-52-2)
- Thioctic acid Impurity 35 (CAS 74903-53-0)
- Rosuvastatin Impurity 172 (CAS 1469771-46-7)
- Tedizolid Impurity 54 (CAS 380380-64-3)
- Dobutamine Impurity 10 (CAS CATO-C4X-129810)
- 7-Chloro-5-(propylthio)-1H-[1,2,3]triazolo[4,5-d]pyrimidine (CAS 339286-31-6)
- (2-(5-Fluoro-2,2-dimethyl-4-oxo-4H-benzo[d][1,3]dioxin-8-yl)vinyl)boronic acid (CAS 2170835-15-9)
- 9-(Hydroxymethyl)acridine-10(1H)-carboxamide (CAS 68797-46-6)
- 3-Ethyl-4-fluoroaniline (CAS 870606-36-3)
- N1-(5-Ethyl-1,2,3,4-tetrahydropyrimido[4',5':4,5]thieno[2,3-c]isoquinolin-8-yl)-N2,N2-dimethylethane-1,2-diamine (CAS 372171-81-8)
- 8-(((4-Methoxybenzyl)amino)methyl)-2,3-dihydro-[1,4]dioxino[2,3-g]quinolin-7(6H)-one (CAS 496782-57-1)
- Semaglutide impurity 34 (CAS CATO-C4X-222634)
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