Aztreonam impurity 95 CAS CATO-C4X-152295
| CAS No. | CATO-C4X-152295 |
| Molecular Formula | C19H27N5O13S2 |
| Molecular Weight | 597.57 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Aztreonam impurity 95 (C19H27N5O13S2) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Aztreonam impurity 95 (CAS CATO-C4X-152295), a pharmacopoeial impurity reference standard (molecular formula C19H27N5O13S2, MW 597.57 g/mol) used for the identification and quantification of trace impurities in APIs.
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), Aztreonam impurity 95 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 | C19H27N5O13S2 |
| Molecular Weight | 597.57 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 2 |
Related Aztreonam Standards
- Aztreonam impurity 96 (CAS CATO-C4X-152296)
- Aztreonam impurity 97 (CAS CATO-C4X-152297)
- Aztreonam impurity 99 (CAS CATO-C4X-152299)
- Aztreonam Impurity 108 (CAS CATO-C4X-1522108)
- Aztreonam impurity 118 (CAS CATO-C4X-1522118)
- Aztreonam Impurity 2 (CAS CATO-C4X-15222)
- Aztreonam Impurity 20 (CAS CATO-C4X-152220)
- Aztreonam Impurity 23 (CAS CATO-C4X-152223)
Recommended Standards
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- Indapamide Impurity 50 (CAS CATO-C4X-140050)
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- Ketotifen Impurity 30 (CAS CATO-C4X-204630)
- ethyl 7-(difluoromethoxy)-4-oxo-chromene-2-carboxylate (CAS 863116-26-1)
- 3-(1-ethyl-1H-pyrazol-4-yl)thiomorpholine dihydrochloride (CAS 1798709-10-0)
- 9H-Xanthene-9-carbonyl chloride (CAS 26454-53-5)
- 1-Amino-2-(2-(2-bromophenoxy)ethoxy)-4-hydroxyanthracene-9,10-dione (CAS 72953-52-7)
- (2R)-1-Benzyl-5-oxo-N-(1-phenylethyl)pyrrolidine-2-carboxamide (CAS 1212481-86-1)
- 2-Methyl-6-(pyridin-3-yl)pyrimidin-4-amine (CAS 90916-55-5)
- Semaglutide impurity 68 (CAS CATO-C4X-222668)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com